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

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