Patuxent Wildlife Research Center - Bird Population Studies
Caution! No species is found on every route, and some routes have data of insufficient quality to estimate change. Consequently, some analyses will provide empty graphs, and "NaN" errors indicating insufficient information.
1966 - 2015 Analysis
See the BBS Summary and Analysis Website for citation, version number, and cautions regarding use.
|Nebraska||Nevada||New Hampshire||New Jersey||New Mexico||New York||North Carolina||North Dakota|
|South Carolina||South Dakota||Tennessee||Texas||Utah|
|Alberta||British Columbia||Mackenzie||Manitoba||New Brunswick||Newfoundland|
|Nova Scotia||Ontario||Prince Edward Island||Quebec||Saskatchewan||Yukon|
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