Grèbe à face blanche/Grèbe élégant non identifiée To sort by any column in descending order, click the column header a second time. Sort by any of the columns in ascending order by clicking on the column header. If more than one band size is listed, the preferred recommended band size is listed first. ![]() The table below is sorted by species number. Adjustments must sometimes be made for geographical, sex and age When more than one band size is indicated, the first is normally the mostĬommonly used. They are not required or recommended for any other purpose. The alpha codes provided here are required for reporting bandings to the Bird Banding Laboratory in Bandit (preferred) or Band manager. The taxa for which we have included formerly recognized species are: Townsend's Shearwater, Green-winged Teal, Snow Goose, Canada Goose, Brant, Tundra Swan, Great Blue Heron, Red-tailed Hawk, Northern Flicker, Savannah Sparrow, Seaside Sparrow, White-crowned Sparrow, Dark-eyed Junco, Yellow-rumped Warbler, and Palm Warbler. For some of these species, there is an "unidentified" category, to be used ONLY FOR TRULY UNIDENTIFIABLE OR INTERGRADE INDIVIDUALS - not in place of subspecific designation. ![]() However, we have maintained the common names and species numbers where the AOU has combined formerly acknowledged species. The AOU stopped using species numbers with the 7th edition of the checklist, but the BBL has continued using the numbers from the 6th edition with modifications. The Banding Offices acknowledge these changes and uses the common names assigned by the AOU. Taxonomic revisions by the AOU have resulted in many changes in bird classification over the past several decades.
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