On this page you can find an overview of all the blog posts that I have written over the years.

  1. Mitochondrial introgression from Red-billed into Black-billed Gulls
  2. Do mixed singers lead to introgression in Leaf Warblers?
  3. That’s nuts! Early evolution of the Nutcracker was not driven by co-evolution with pine seeds
  4. Peregrine Falcons with ‘eye make-up’ might be better hunters
  5. The benefit of “broken” hybrids
  6. The type specimens of the Great Spotted Kiwi are hybrids
  7. The genetics of range expansion in Anna’s Hummingbird
  8. Some hybrid parrots don’t care about the boundaries between genera
  9. Surprisingly high genome-wide diversity in the California Condor
  10. Dating with different techniques: Consilience of divergence times between Bean Goose species
  11. Decoupling of genetic and phenotypic evolution in the Tawny-Crowned Greenlet
  12. Do aggressive interactions lead to plumage divergence in chickadees?
  13. What causes taxonomic disagreement between bird checklists?
  14. Hubbs Principle: Loneliness can lead to hybridization
  15. When 1 + 1 = 3: Hybrid speciation in birds
  16. Does mitochondrial introgression also impact the nuclear genome?
  17. What is the most diverged avian hybrid?
  18. Urbanization promotes hybridization between Common Swift and Pallid Swift
  19. The reticulated evolution of the Bean Goose complex
  20. Past, present and future of a huge inversion in the Common Quail
  21. Inbred House Sparrow nestlings have shorter telomeres
  22. Blue-eyed Shags colonized Southern Ocean islands in two waves
  23. Reclassifying Robins: Two new species on the Canary Islands
  24. The beak color of the finch
  25. The evolution of multi-copy genes on the W-chromosome
  26. Calling fast and slow: Hybridization risk affects female choice in Spadefoot Toads
  27. Is Lilian’s Meadowlark a distinct species?
  28. Applying the Biological Species Concept to Bacteria
  29. What caused the decline of the Green Peafowl?
  30. Slow down, please: The evolution of beak morphology in Tanagers
  31. How different are Mallards and Chinese Spot-billed Ducks on a genetic level?
  32. Big geological events and a small bird: the evolutionary story of the Rifleman
  33. What determines range shifts up and down tropical mountains?
  34. Adaptive introgression between two high-altitude duck species
  35. Is the Altai Snowcock a hybrid species?
  36. The ebb and flow of the Taiwan Strait shaped patterns of gene flow between two partridge species
  37. Puffin population structure: There is more than meets the eye
  38. Extensive introgression between Red-naped and Yellow-bellied Sapsucker
  39. What is a species anyway?
  40. Genetic mismatches in the Long-tailed Finch
  41. Stuck in a Ruff: Having a supergene is not always super
  42. Should we save the Kākāpō?
  43. Does founder-effect speciation occur in the Silvereye?
  44. How did snowfinches adapt to high-altitude environments?
  45. Convergent evolution of color morphs in Skuas
  46. Two American sparrows with similar mtDNA: Rapid speciation or hybridization?
  47. How Amazon parrots spread across the Greater Antilles
  48. Scientists “resurrect” ancient proteins to understand how penguins can hold their breath for so long
  49. Ancient gene flow complicates phylogenetic analyses of leaf warblers
  50. The danger of few genetic markers: Revisiting introgression between Chukar and Red-legged Partridge
  51. Singing a different song: Incipient speciation in the Small Tree Finch
  52. Splitting the Black-throated Trogon into five species
  53. The extinct cave-rails were not rails
  54. The evolution of mechanical sounds in Doraditos
  55. What is the difference between hard and soft selection?
  56. Do gut microbiota contribute to reproductive isolation between Nightingale species?
  57. A supergene determines morphological variation in redpolls
  58. Why do some female hummingbirds look like males?
  59. How low can you go? Exploring sex-linked genetic diversity in Barn Swallows
  60. How the Fasciated Antshrike met the Bamboo Antshrike
  61. The genetic basis of long-distance migration in Peregrine Falcons
  62. Whistlers highlight the unreliability of DNA barcodes
  63. Incomplete lineage sorting impacted the evolution of marsupials
  64. Divergence in a crowded space: How sympatry influences the evolution of wood-warblers
  65. A transposable element associated with migratory behavior of Willow Warblers
  66. Genomic evidence for sexual traits as honest indicators of immune function in birds?
  67. Rapid speciation through reshuffling of existing genetic variation
  68. The role of positive selection during the genomic evolution of Flycatchers
  69. The evolution of bird song: gradual or punctuated?
  70. How was the genome of non-avian dinosaurs arranged?
  71. A mitochondrial mystery involving two Monarch Flycatchers
  72. How did rails spread across the globe?
  73. Are Quail hybrids more susceptible to avian malaria?
  74. Stopping the decline of the Bearded Vulture
  75. First-generation hybrids between two highly divergent Wren species
  76. Delineating conservation units in the Pink Cockatoo
  77. Morphological and genetic evidence for hybrids between Magnolia Warbler and American Redstart
  78. Social bonds and migratory behavior determine the likelihood of hybridization in birds
  79. Mismatches between mtDNA, nuclear markers and morphology in the Canada Jay
  80. Chromosomal evolution in sandpipers
  81. The benefits and drawbacks of living on an island
  82. Isolated in Iberia: Unraveling the origin of an Iberian Rook population
  83. Recent and ancient hybridization among sea duck species, including a potential hybrid species
  84. Quantitative genetic analyses of Song Sparrows reveal the dark side of gene flow
  85. Using evolution in conservation: Genomic vulnerability of the Little Greenbul
  86. Resolving the White-eye phylogeny
  87. Do Chestnut-colored Woodpecker and Golden-olive Woodpecker hybridize?
  88. Using genetic data to protect the Atlantic and Indian Yellow-nosed Albatross
  89. Genetic evidence for hybrids between Copper Seedeater and Pearly-bellied Seedeater
  90. Similar migration strategies explain the evolution of flight calls in wood warblers
  91. What shaped the evolution of the Azure-crowned Hummingbird: geographic barriers or climate?
  92. Studying Willow and Alder Flycatcher at different stages in the speciation process
  93. A chicken and egg situation: did the Red or the Green Junglefowl evolve first?
  94. Demography or selection: What determines the hybridization dynamics between Saltmarsh Sparrow and Nelson’s Sparrow?
  95. Body size and phylogenetic history constrain the evolution of bird song
  96. Rampant introgression across the evolutionary tree of suboscine birds
  97. How did the population of Sussex Peregrine Falcons recover?
  98. The Warbling Vireo comprises of two cryptic species
  99. Hybridization helps to determine the genetic basis of head patterns in the White Wagtail
  100. How can Snowfinches and Tree Sparrows survive at high altitudes?
  101. Does sexual selection promote speciation?
  102. Hybridization of the habitat: More admixed chickadees in urban areas
  103. From the Amazon to the Atlantic Forest: the evolutionary story of the Blue-backed Manakin
  104. Simultaneous wing molt as a pre-adaptation for loss of flight
  105. Pinpointing “plumage genes” with hybrids between the Yellow-shafted and Red-shafted Flicker
  106. Ecology matters: Diet predicts genetic divergence in Neotropical birds
  107. The genetic basis of tool use in New Caledonian and Hawaiian Crows
  108. East or West Africa: Where was the Helmeted Guineafowl domesticated?
  109. Is the Polynesian Wattled Honeyeater a “supertramp” species?
  110. Some peculiar duck hybrids provide insights into the evolution of sexual dichromatism
  111. Why is sympatric speciation rare in birds?
  112. From Sweden to Japan: A genetic look at the White-backed Woodpecker
  113. The constrained evolution of a hybrid species, the Italian Sparrow
  114. Unraveling the evolutionary history of the Manakins
  115. Swapping pigmentation genes across the Parulidae phylogeny
  116. How the Pleistocene glacial cycles drove the evolution of Arctic shorebirds
  117. Are the Blue-faced and the Papuan Parrotfinch different species or not?
  118. Are Black Kite hybrids moving into Europe?
  119. Divergent sperm morphology as a reproductive barrier between Saltmarsh and Nelson’s Sparrow
  120. Unraveling the evolutionary history of the Galapagos Rail
  121. Similar plumage, but different songs: How many subspecies of Willow Flycatcher are there?
  122. Are there still ‘pure’ Javan Pied Starlings?
  123. Genomic islands of differentiation in seedeaters are mainly the outcome of selective sweeps
  124. What is so special about Darwin’s Finches?
  125. Searching for a hybrid zone between two Andean warblers
  126. Bioacoustics support the decision to split the Elegant Pitta into three species
  127. Before the invasion: Quantifying the level of pre-introduction selection on two Weaver species
  128. How convincing is the evidence to split the Gentoo Penguin into four species?
  129. Hybrids between Zebra Finch subspecies provide evidence for a weak meiotic driver
  130. Ancient DNA reveals low levels of past genetic diversity in the Andean Condor
  131. The mystery of the white-faced Limestone Wren-babbler: a leucistic morph or a separate (sub)species?
  132. Does disrupted gene expression cause hybrid sterility in Flycatchers?
  133. Integrative taxonomy of the Lesser Short-toed Lark and Sand Lark species complex
  134. More markers, more power? Genomic analyses uncover fine-scale population structure in Philippine Broadbills
  135. Not dead yet: The decaying W-chromosome of songbirds can still acquire new genes
  136. A small genomic region explains the plumage differences between Townsend’s and Hermit Warbler
  137. Rapid evolution of sexual dimorphism in island populations of the Sulawesi Babbler
  138. The genomics of being an owl
  139. Protecting the White-tailed Tropicbird
  140. Female preference for red plumage drives hybridization in tinkerbirds
  141. Hybrid pairing between a Cerulean Warbler and a Black-throated Blue Warbler
  142. Ghost populations explain how the Red-billed Chough reached the Canary Islands
  143. Postzygotic isolation drives speciation in Warbling-antbirds
  144. How often do Barrow’s Goldeneye and Common Goldeneye hybridize?
  145. Why do male and female birds look different? A role for alternative splicing
  146. Adaptive potential of the endangered Antioquia wren
  147. How strong is reproductive isolation between Golden-winged and Blue-winged warbler?
  148. Across Asia and beyond: The evolutionary story of the Common Pheasant
  149. Genetic evidence for hybridization between Magellanic and Humboldt penguins
  150. The Pleistocene Arc Hypothesis explains the evolution of the Rufous-fronted Thornbird
  151. The Herring Gull complex is not a ring species
  152. Studying the global conquest of the Common Starling with haplotype networks
  153. A mallard mystery: Unraveling the genetic basis of green egg color
  154. The importance of taxonomy in saving the critically endangered Black-winged Myna
  155. The taxonomic story of the Stipplethroats
  156. A genetic test of the theory of island biogeography using the Fiji bush-warbler
  157. Exploring the speciation continuum of hummingbirds
  158. You only need one genome to unravel the demographic history of the Chinese Grouse
  159. How many rosy-finch species are there in North America?
  160. A new subspecies of Manx Shearwater from the Canary Islands
  161. Testing the gradient speciation hypothesis in New Guinea Kingfishers
  162. Rapid morphological evolution in the Silvereye: random processes or selection?
  163. Unraveling the genetic basis of adaptive traits in the endangered Hihi
  164. Bad news for the Brown Eared Pheasant?
  165. Human activities facilitate hybridization in Allen’s Hummingbird
  166. A scoring scheme to assess the reliability of bird hybrids
  167. A gene within a supergene: An estrogen receptor shapes the behavior of White-throated Sparrow morphs
  168. The phylogeographic story of a Manakin and a Bamboo Tyrant
  169. How the Common Starling conquered Australia
  170. The social network of hybrid quails
  171. Why are some parrots more colorful than others?
  172. Gene flow is an integral part of speciation in Beringian birds
  173. Genetic patterns along the South American dry diagonal: The case of the Narrow-billed Woodcreeper
  174. Where did all these penguins come from?
  175. The role of neutral mutations in adaptive evolution
  176. Did sexual selection drive the evolution of Gallopheasants?
  177. With or without gene flow? Studying speciation in the Grey-headed Bullfinch species complex
  178. More than meets the eye: How many species does the bird genus Dendrocolaptes contain?
  179. The evolution of the genomic landscape in Silvereyes does not follow theoretical predictions
  180. Black-and-white birds: The influence of climatic conditions on gull plumage
  181. A genomic perspective on the classic hybrid zone between Baltimore and Bullock’s Oriole
  182. Why do Robust Woodpecker, Lineated Woodpecker and Helmeted Woodpecker look alike?
  183. Admixture in Amazonia: Reconstructing the evolutionary history of the Pectoral Sparrow
  184. The role of hybridization in the domestication of geese
  185. Convergent evolution of immune proteins in tits, chickadees, and titmice
  186. The constrained evolutionary trajectories of White-eyes on the African mainland and its islands
  187. Why the “Red-breasted Meidum Goose” is probably not an extinct species
  188. Splitting the Long-tailed Rosefinch into a Chinese and a Siberian species
  189. How did the Ice Ages affect three Scrubwrens in the highlands of Papua New Guinea?
  190. Genomic study unveils the true identity of Brewster’s and Lawrence’s Warbler
  191. Isolated Icterids: Unraveling the evolutionary history of the Altamira Oriole
  192. The complex interplay between tRNA genes and transposable elements in bird genomes
  193. Unusually low genetic diversity in the Red-billed Tropicbird
  194. The magic of Fairywren hybrids
  195. How the Hooded Crow got its hood: A tale of two crows and a transposable element
  196. A genomic continuum from feral to wild Red Junglefowl in Singapore
  197. How did the Ground Tit get its long beak?
  198. Solving the genetic mystery of the mosaic canary
  199. Should I stay or should I go? Patterns of gene flow across land bridges in Southeast Asia
  200. Do male Hoopoes judge female quality by inspecting the color of her eggs?
  201. Solving the paradox of the great speciator on the Solomon Islands
  202. Intermediate color morphs of the Common Buzzard are most successful
  203. Misconceptions and regressions: The evolution of bird brains
  204. From the sky to the island: Flightless rail species converge on the same body plan
  205. Three bird species show how to travel between the Andes and the Atlantic Forest
  206. Mixing Motmots: A hybrid between Rufous and Amazonian Motmot in Brazil
  207. The genomics of local adaptation in Blue Tits
  208. Mitochondrial capture in the Chestnut Quail-thrush: Neutral or adaptive introgression?
  209. How many ancestral species gave rise to the domestic chicken breeds?
  210. The Great Speciator strikes again: Discovery of a Mangrove White-eye in Saudi Arabia
  211. Building bowers and phylogenies: Genomic study reconstructs the complex evolution of bowerbirds
  212. Following the Forests: How the Variable Antshrike spread around the Amazon
  213. Is prezygotic isolation more important than postzygotic isolation at the onset of speciation?
  214. A common species with a complex history: The evolutionary story of the Great Tit
  215. How and when did Frogmouths cross Wallace’s Line?
  216. Inferring introgression: Genomic study on hybridizing Darwin’s Finches highlights the importance of field observations
  217. Uncovering cryptic diversity in the lesser short-toed lark species complex
  218. Non-coding DNA drives the evolution of avian beak morphology
  219. Figuring out the origin of two Fire-eye Antbird species in the Atlantic Forest
  220. The speciation cycle of Taiga and Tundra Bean Goose
  221. Are we missing something? Exploring the diversity of white-eye species on the African mainland
  222. Blackcaps help to unravel the genetic basis of bird migration
  223. How many members of the Lesser Whitethroat complex breed in Iran?
  224. What drives avian speciation in the Amazonian floodplains?
  225. Selection on metabolism and memory in a moving Chickadee hybrid zone
  226. Surprisingly high genetic diversity in an island species: What happened to the Raso Lark?
  227. Genetic bridges: Medium ground finch functions as a conduit for gene flow between two other Darwin’s Finches
  228. The curious case of the Vaurie’s nightjar
  229. Colorful females, dull males and everything in between: the complex evolution of plumage patterns in the Pacific Robin
  230. Complicated Cotingas: Can we resolve any phylogeny by just adding more data?
  231. Loss of migration leads to speciation in the Fork-Tailed Flycatcher
  232. Do plumage patterns support the eleven subspecies of the Velazquez’s Woodpecker?
  233. Ready, set, speciate: The role of sex chromosomes in the divergence of Reunion grey white-eye morphs
  234. Crossbills show there is more to evolution than natural selection
  235. Solving the seabird paradox: How does genetic differentiation arise in highly mobile species?
  236. Splitting scimitar babblers: Genetics and morphology point to two distinct species
  237. Do rivers promote avian speciation in the subtropics?
  238. Captive-bred ducks are genetically swamping wild Mallard populations in eastern North America
  239. A suite of subfamilies: How to classify the estrildid finches?
  240. Do crows engage in extra-pair copulations to avoid hybridization?
  241. Taxonomy in flux: The story of three flatbills and a flammulated flycatcher
  242. Saving the Snowy Plover: How many conservation units should we protect?
  243. Can you deduce the activity patterns of owl species from their eye color?
  244. Black hoods or bright eyes: The evolution of plumage patterns in gulls
  245. A Caribbean connection: How thrushes conquered the world
  246. African adventures: Human-mediated hybridization between Common and Black-faced Impala
  247. Ancient DNA helps to place two extinct duck species on the Tree of Life
  248. Cryptic Crows: Genetic study uncovers a wide hybrid zone between American and Northwestern Crow
  249. Does migratory behavior affect genetic diversity in the Golden-crowned Kinglet?
  250. Phylogenetics in the genomic era: Reconstructing the evolutionary tree of rails (family Rallidae)
  251. Hybridizing hyenas and how to find them
  252. Conservation genetic in China: Comparing genetic diversity of Siberian and Sichuan Jays
  253. Figuring out the evolution of forked tails in Swallows and Swifts
  254. Choosy Snowcocks: How habitat preference can affect genetic population structure
  255. Woodcreeper species continue to exchange DNA until 2.5 million years after divergence
  256. Drum roll, please! The evolution of rhythm in Woodpeckers
  257. Did the New Zealand Rockwren ever occur on North Island?
  258. Let’s not hop to conclusions: Delineating species in the Rockhopper Penguin complex
  259. The peculiar genomes of Falcons
  260. Population Genomics of Mangrove Warblers: Looking for candidate genes in Costa Rica
  261. How mountains, rivers and hybridization drove the evolution of the Blue-crowned Manakin
  262. Shake your tail feather! Courtship displays and genetic analyses uncover extensive hybridization between Allen’s and Rufous Hummingbird
  263. Are there still “pure” Hawaiian Ducks?
  264. Beyond genetics: How different are Kentish and White-faced Plover?
  265. Different migration strategies contribute to reproductive isolation between Barn Swallow subspecies
  266. Babblers provide evidence for “speciation cycles” in the Himalayan-Hengduan Mountains
  267. Are there really two species of red panda?
  268. Ecological speciation in the saltmarshes
  269. Observations confirm intergeneric hybridization between Common Black Hawk and Red-Shouldered Hawk
  270. Choosing between Cerrado and Chaco: Which corridor connected the Andean and Atlantic forest populations of the Buff-browed Foliage Gleaner?
  271. The variable beak of the finch: How hybridization increases variation in beak morphology
  272. Contemplating Kingfishers in Indonesia: The story of a “Great Speciator”
  273. Isolation by distance, adaptation or environment: What explains genetic patterns in the Red-crowned Ant-tanager?
  274. Genetic study uncovers viability selection in the Imperial Eagle
  275. Reader’s Hybrids: Ducks and Geese
  276. Genomics on the Galapagos: Exploring the genetic diversity of Darwin’s Finches and their relatives
  277. A genetic model for puntuated equilibria
  278. Drawing lines between larks: How many species of Horned Lark are there?
  279. Genomic data uncover subtle population structure in the White-chinned Petrel
  280. Where did the Ecuadorian Creole Chicken come from?
  281. A mosaic hybrid zone between Scissor-tailed Flycatcher and Western Kingbird
  282. Explaining the pantropical distribution of kingfishers, bee-eaters, rollers, motmots, and todies
  283. The genomics of being a raptor
  284. A taxonomic riddle: Where does the extinct Canary Islands Oystercatcher fit in?
  285. A lesson in cladistics with the Plain-brown Woodcreeper
  286. Unraveling the origin of the Visorbearers
  287. White-throated Sparrows influence gene expression in their offspring
  288. Taking advantage of hybridization to find a migration gene in warblers
  289. Songbirds have an extra chromosome in their germline
  290. The crazy sex-chromosomes of the Larks
  291. Islands in the Andes: Are populations of the Plumbeous Sierra-finch in Ecuador genetically distinct?
  292. Multispecies hybridization among Thrushes (genus Catharus)
  293. Cultural evolution contributes to speciation in Crossbills
  294. Are crows on islands experiencing a mutational meltdown?
  295. Hybrid Honeyeaters in eastern and western Australia
  296. Sparrows illustrate the possible outcomes of hybridization: from a hybrid species to a mosaic hybrid zone
  297. D-statistics for Dummies: A simple test for introgression
  298. The evolution of feathers: How sexual selection set the stage for natural selection
  299. Promiscuous Pitohuis: Exchange of “toxicity genes” between poisonous birds?
  300. A hybrid in the making? Attempted mating between Sanderling and Broad-billed Sandpiper
  301. Pinning down the Shrike phylogeny
  302. Testing for gene flow between Torrent Ducks in Peru and Argentina
  303. Separating Sparrows: Species limits in the striped-sparrows (genus Rhynchospiza)
  304. Ecological speciation in the White-tipped Plantcutter
  305. How far did the hybrid zone between Hermit Warbler and Townsend’s Warbler move?
  306. The Caracara Conundrum: Where does the extinct Creighton’s Caracara fit in?
  307. North-south divergence within Godlewski’s Bunting coincides with the uplift of the Tibetan Plateau
  308. Analyses of museum specimens uncover hybrid jays in Brazil
  309. Asian Leaf Warbler might carry mitochondrial DNA of an extinct species
  310. The Smell of Speciation: Chickadees prefer the scent of their own species
  311. Is there a hybrid zone between subspecies of the Scarlet Macaw?
  312. Classifying Corvids: Peculiar phylogeographic patterns in the crow family
  313. More than meets the eye: Scientists discover several cryptic storm-petrel species
  314. How many times did Steamer Ducks lose the ability to fly?
  315. Genetic study reveals how four different sparrow species adapted to life in the salt marshes
  316. Adventures in the Andes: The Tantalizing Tale of the Torrent Duck
  317. These two White-eye species should be hybridizing, but they don’t…
  318. Genetic study uncovers a deep split within the Hooded Pitta species complex
  319. High levels of gene flow between different populations of North American Scoters
  320. Central-American Wood-partridges are older than expected
  321. Off-color Orioles: Hybrids or abnormal plumage patterns?
  322. Pecking in the Pyrenees: No gene flow across a hybrid zone between Eurasian and Iberian Green Woodpecker
  323. Back from the brink of extinction: The remarkable recovery of the Crested Ibis
  324. How many species of Red-shouldered Hawk are there?
  325. It takes two: The evolution of duets in New World warblers
  326. A philosopher claims species do not exist. He is wrong.
  327. Can Mandarin Ducks hybridize with other duck species?
  328. The social lives of quails: Why do California and Gambel’s quail hybridize?
  329. What’s for dinner? Rapid evolution of non-native frugivores on O’ahu
  330. Genetic study of the Mallard complex reveals extensive hybridization with little recent gene flow
  331. A Brazilian Brain-teaser: How did the hybrid zone between Rufous-capped and Bahia Spinetail form?
  332. Introducing another hybrid bird species: the Salvin’s Prion
  333. Spooky introgression in the African jungle: Bonobos hybridized with a “ghost” ape
  334. The more the merrier? My review on multispecies hybridization in birds
  335. Do grazing waterbirds surf the green wave?
  336. Hybridization with escaped falconry birds and nest poaching threaten Barbary Falcons on the Canary Islands
  337. The genetic legacy of population decline and recovery in the Red-cockaded Woodpecker
  338. Honey, I resolved the Meliphaga phylogeny!
  339. How do hybrid Tree Finches cope with parasites?
  340. Does hybridization between Nuttall’s and Ladder-backed Woodpecker result in gene flow?
  341. Genomic analyses point to speciation with gene flow in the Northern Saw-whet Owl
  342. What drives plumage evolution in woodpeckers?
  343. Hybridization and Tinkering: High levels of gene flow between Yellow-fronted and Red-fronted Tinkerbird
  344. East or West? Different populations of Red-necked Phalaropes use distinct migration routes
  345. Island formation drove penguin evolution
  346. Oh My Gosh! The complicated taxonomy of the Northern Goshawk superspecies
  347. The head of the finch: A small genetic region controls colour morphs in the Gouldian Finch
  348. Cartilaginous crosses: A short overview of hybridization in sharks and rays
  349. The evolution of bird coloration: Exploring the complex interplay between natural and sexual selection
  350. How to turn a Carrion Crow into a Hooded Crow (and vice versa)?
  351. Breaking Barriers: Low levels of gene flow among subspecies of the Grey Shrike-thrush
  352. Is the Great White Heron a distinct species?
  353. Species in the making: Genomic analyses reveal incipient speciation in the Ground Tit
  354. Museum specimens reveal phenotypic introgression in a Scrub-Jay contact zone [Guest Post by Devon DeRaad]
  355. The Niches of the Nuthatch: How local adaptation and competition have shaped the present-day distribution of the Eurasian Nuthatch
  356. An Egyptian Goose is not a goose
  357. Combinatorial Speciation: Reassembling of old genetic variation facilitates rapid speciation and adaptive radiation
  358. Mastering Malaria: The Hawaiian ‘Amakihi uses a variety of genes to combat avian malaria
  359. A Mitochondrial Mystery: Why are there two deeply divergent lineages in the Savannah Sparrow?
  360. Are Chinese indigenous chicken breeds genetically “polluted” by commercial broilers?
  361. Barking up the wrong species tree: How gene flow shaped canine evolution
  362. Tracing the origins of the giant raptors on New Zealand
  363. Chaffinches on the Canary Islands: A new subspecies on Gran Canaria
  364. More than one way: How the open vegetation corridor influences the evolution of South American birds
  365. Scrutinizing a Superspecies: Patterns of Gene Flow among Common, Long-legged and Upland Buzzard
  366. The genetic recipe for a bird-of-paradise radiation
  367. A Puzzle of Primates: Disentangling the complex evolutionary history of Baboons
  368. Hybrids all the way down: Interbreeding musk turtles in Alabama
  369. Are Mallards driving Black Ducks to genetic extinction?
  370. Which genes contribute to speciation and adaptation in grouse?
  371. Hybrid speciation in yeast: How one hybrid species gave rise to another one
  372. Has climate change moved the hybrid zone between Red-naped and Red-Breasted Sapsucker?
  373. Adaptation in Parrotbills fueled by standing genetic variation
  374. First report of hybridization in millipedes
  375. Can divergence in sperm morphology reduce hybridization in nightingales?
  376. Protecting Penguins: Exploring population dynamics in several penguin species
  377. Monophyletic Manakins? Not according to mtDNA…
  378. Crossing the Atlantic: How the Glossy Ibis colonized North America and hybridized with the native White-faced Ibis
  379. Hybridization with Painted Stork threatens the already endangered Milky Stork
  380. Doing it in the Dark: Hybridization in Bats
  381. A Little Brown Job: Unraveling the Chiffchaff complex
  382. Scientific Sherlocks: The Case of the Imperial Pheasant
  383. Why are more sex-linked genes flowing from Thrush into Common Nightingale? Exploring the faster Z-effect in birds
  384. Who runs the world? Hybrid zone dynamics in a bird species where females compete for males
  385. Hybridization contributes to rapid and repeated evolution of cave fish
  386. Are Snow Bunting and McKay’s Bunting different species?
  387. How healthy are juvenile eagle hybrids?
  388. Why do different populations of the Greenish Warbler sing other songs?
  389. Unraveling the history (or histories?) of the Red-bellied Woodpecker
  390. Flipping DNA: The role of inversions in avian evolution
  391. φοβερο! Hybrid dolphins in the Greek Seas
  392. Genetic population structure of the Black-billed Gull, with a hint of Red-billed Gull
  393. A hybrid between Black-browed Tit and Sooty Tit
  394. Looks can be deceiving: Parallel evolution of plumage coloration in wheatears
  395. Hybridization leads to emergence of a new sex chromosome
  396. A hybrid zone between subspecies of the Common Ringer Plover?
  397. How many hybrid bird species are there?
  398. Going with the flow: Gene flow from Chinese Spot-billed Ducks into Mallards
  399. Studying sperm success: A possible reproductive barrier between subspecies of the Long-tailed Finch
  400. Exploring the genomic landscape of wood-warblers
  401. Newly discovered hybrid zone between Colima and Virginia’s Warbler in Texas
  402. What selection pressure is acting on hybrids between Audubon’s and Myrtle Warbler?
  403. Crisscrossing Europe: The genetics of crossbills in the western Palearctic
  404. Are yellow-rumped warbler hybrids more susceptible to parasite infections?
  405. Mixing in the Marshes: King rail and clapper rail hybridize in Virginia
  406. Looking for genetic differences between Araripe and helmeted manakins in Brazil
  407. Salty Genes: Hybridization between saltmarsh and Nelson’s sparrow results in exchange of adaptive genes
  408. Where did all these fish come from?! A genomic perspective on the explosive diversification of cichlids
  409. The eagle has landed: Tracking the migration of hybrids between lesser and greater spotted eagles
  410. Wall lizards form hybrid swarms in German cities
  411. Pinpointing the position of a parrot hybrid zone in eastern Australia
  412. Ancient DNA study sheds light on domestication history of geese in Russia
  413. Got your mtDNA! Mitochondrial capture in Amazonian Jacamars
  414. Fascinating Finches: Patterns of Gene Flow in South American Siskins
  415. On the Origin of Pigeon Plumage Patterns: A Role for Hybridization
  416. Something smells fishy: Exchange of olfactory genes between cichlids
  417. High altitude hybrids: the story of Ruddy Ducks in Colombia
  418. Promiscuous pathogens: What if disease-causing fungi hybridize?
  419. It’s complicated: Hybrid hummingbirds in Mexico
  420. Knock, Knock! Who is there? Woodpeckers, but how many species?
  421. Glacial cycles culminate in hybridization events between North American Stoat populations
  422. Why are seabird hybrids so rare?
  423. Probing the Puzzling Plumage Patterns of White Wagtails
  424. Glorious Bustards: How many species of great bustard are there?
  425. Mind the gaps: The incompleteness of complete avian genome assemblies
  426. The Flight of the Condor: How the Andes shapes patterns of gene flow
  427. Readers’ Hybrids: A lot of hybrid parrots!
  428. Let me take a selfie: Scientists discover hybridization in a selfing fish
  429. Several hybridization events shaped the evolution of Neotropical flycatchers (genus Elaenia)
  430. Coal tits exchange genes in central Europe
  431. On avian hybrids in the low countries
  432. Holy Cow! Hybridization Facilitated Domestication and Adaptation of Cows
  433. Exploring gene tree discordance with lizards
  434. Are hybrids between capuchino seedeaters fertile?
  435. Hybridizing hares: How the snowshoe hare got its brown coat
  436. How trees can drive fish speciation in the Amazon
  437. Genetic Analyses confirm Hybridization in a Threatened Tern Species
  438. Do land bridges facilitate gene flow between island populations?
  439. Coloring outside species boundaries: A ‘super’-cool example of adaptive introgression in butterflies
  440. Why Nightingales Don’t Mix: Interspecific Competition and Sterile Females
  441. What keeps bird species distinct in Amazonian hybrid zones?
  442. A Dutch mystery: Can you guess which duck species have hybridized?
  443. What Happens When Two Badger Species Meet in Russia?
  444. Dumb, dumber, hybrids? Chickadee hybrids show lower intelligence
  445. The hybrid genome of the Italian Sparrow: endless genetic variation?
  446. Reader’s Hybrids: A Canada Goose x Greylag Goose in the UK
  447. Don’t forget the hybrids! Antbird study shows that not taking into account hybridization leads to the wrong species tree
  448. Are Wagtail subspecies supported by genetic data?
  449. Sorry I’m late. Less hybrid Flycatchers due to climate-driven changes in timing of breeding?
  450. It’s not a tree, but a network! New insights into the evolution of baleen whales
  451. Two new hybrids for the checklist: an Australian Ibis and a South-American Brush Finch
  452. The subspecies of the White-collared Seedeater complex are not even closely related
  453. There used to be two Black Swan species on New-Zealand
  454. Hybridizing Flame-rumped Tanagers clearly show that mixing red with yellow gives you orange
  455. Mixing mammoths and blending bears: DNA from fossils reveals ancient hybridization
  456. Bergmann’s Rule in the Andes: The Case of the Line-cheeked Spinetail
  457. Wandering Wekas: The Genetic Structure of a Flightless New Zealand Bird
  458. Hybrid zones help to unravel the genetics of bird coloration
  459. Disentangling the Evolutionary History of Towhees in Mexico
  460. OMG (Owls, Migration and Genetics)! A Heteropatric Speciation Model for Northern Saw-whet Owls
  461. From the Rainforest to the Savannah: Ecological Speciation in the Little Greenbul?
  462. Hybridization as the Engine of Adaptive Radiation
  463. Hybrid Bird Species: A Big Bird on the Galapagos Islands and a Small Manakin in the Amazon Basin
  464. Trouble with the Tinkerbirds: Different subspecies sing the same song
  465. A Reunion of Three Color Morphs on Reunion
  466. Cheating in the Czech Republic: Ducks Putting Their Eggs in the Wrong Basket
  467. A Lesson in Cline Theory with Some Hybridizing Barn Swallows
  468. Different, but the same: How Amazonian rivers and African deserts drive bird speciation
  469. Avian hybridization in Asia: Venturing into the (relatively) unknown
  470. You Go, Girl! Females determine direction of gene flow in Tree Finches
  471. Hybridization in Birds: The Trilogy
  472. Watch Your Head: Why White Wagtails Won’t Mix
  473. Looking for Migration Genes in the Willow Warbler Genome
  474. Promiscuous Petrels: Genetic Study Reveals Gene Flow on a Global Scale
  475. Throwback Thursday: Six Years with a Brewster’s Warbler
  476. Becoming Black: The Origins of Melanic Monarcha Flycatchers
  477. Che Figata! New studies on the ecology and evolution of a hybrid species, the Italian Sparrow
  478. Splitting Buntings in the Sahara
  479. More Species Than Meets the Eye: A Genetic Look at the Red-eyed Vireo Complex
  480. Mottled Mallards on the Western Gulf Coast
  481. Hybridization in Primates (and yes, that includes you!)
  482. Arctic Sharks: A Story of Ice-olation and Hybridization
  483. Hybrid Owls: Californian Contacts and Mediterranean Migrants
  484. The Beak of the Bullfinch: Remains of an Extinct Bird Species Found on the Azores
  485. Two Crow Hybrid Zones for the Price of One!
  486. A Northern and a Southern Perspective on Hybrids between Golden-winged and Blue-winged Warbler
  487. The Ecological Succession Story of Hybridizing Bluebirds
  488. Hybrid Geese: A Trilogy of Papers
  489. Throwback Thursday: Observations of Red-shafted and Yellow-shafted Flickers in a 1893 letter to Science
  490. Throwback Thursday: Strange Swallows from 1902
  491. Some Hybrid Woodpeckers from North and South America
  492. Throwback Thursday: A Hybrid Quail That Tried to Phone Home
  493. The Superb Bird-of-Paradise and the ‘Dancing Species Concept’
  494. The Songs of Tree Finches (and their hybrids)
  495. Hybrid Geese in Finnish Hunting Bags
  496. Hybridizing Buntings in Iran
  497. Rawnsley’s Bowerdbird: Another species that turns out to be a hybrid
  498. Separating the wheat from the (chiff)chaff
  499. Interspecific Spooning
  500. It’s not a new species, it’s a hybrid!
  501. Conservation of the Mottled Duck: Multiple Populations and a Feral Threat
  502. A New Year and some new papers
  503. Spring Updates, including artistic Pheasants and Promiscuous Petrels
  504. An Early Christmas Present: Pictures and Papers
  505. Amazonian Hybrids
  506. Recent Updates: Flycatchers, Birds-of-Paradise, Eagles and Malagasy Passerines
  507. Morphology Insufficient to Detect Hybrid Sparrows
  508. Giant Petrel Hybrids are Fertile
  509. Thrush Migration and Speciation