All Birds Wiki
Advertisement

Australasian Figbird "Green Figbird"(vielloti ssp.)

"Yellow Figbird" (flaviventris spp.)

A graded series of changes in 'character' (e.g. body- or bill-size; colour) of a bird across a geographical area; e.g. Varied Sittella, Australasian Figbird[1].

References

  1. ^ Simpson & Day (1999). A Field Guide to the Birds of Australia, 6th Edition. Penguin. ISBN 0-691-04995-5. 
Anatomy of an amiotic egg.svg This article is part of Project Glossary, a All Birds project that aims to write comprehensive articles on each term related to animals.


Dino bird h.jpg This article is part of Project Evolution, a All Birds project that aims to write comprehensive articles on each evolutionary term related to birds.
Advertisement