Search AOU:
Translate to: Español | Français | Português

The AOU Check-list of North American Birds, 7th Edition

This publication is the official source on the taxonomy of birds found in North and Middle America, including adjacent islands.

A searchable online version of the Check-list, including updates, is also available.

The 829-page hardbound volume, published in 1998, may be purchased from Buteo Books or downloaded in PDF format (see list of sections below: file size up to 13 MB):

Note that the documents above do not as yet incorporate changes made in the Supplements to the Check-list. Annotations to the book pdfs are planned for future, but for now, users of the book must check the supplements or the online Check-list to determine whether changes have been made.