Gaviiformes

Gaviiformes is a bird order that comprises the loons. Apart from numerous extinct species, five species are placed in the genus Gavia:

  • Red-throated Loon (G. stellata)
  • Black-throated or Arctic Loon (G. arctica)
  • Pacific Loon (G. pacifica)
  • Common Loon (G. immer)
  • Yellow-billed Loon (G. adamsii)

Hybrids within this group of birds are not common, but a few have been reported and described. McCarthy (2006) lists the following natural hybrids:

  • Yellow-billed Loon x Common Loon
  • Arctic Loon x Common Loon
  • Common Loon x Pacific Loon
  • Common Loon x Red-throated Loon

One study describes a hybrid between Yellow-billed Loon and Common Loon based on a museum specimen from the collections of the Zoological Museum Amsterdam (Roselaar et al. 2006).

 

Gavia immer and G. stellata

Gavia immer and G. stellata

 

References

Roselaar, C. S., Prins, T. G., Aliabadian, M. & Nijman, V. (2006). Hybrids in divers (Gaviiformes). Journal of Ornithology 147, 24-30.

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