Organizations

Audubon New York
Audubon Society of the Capital Region
Cornell Laboratory of Ornithology
Columbia County Tourism
     ( order your CC Hudson Valley
       Region Bird Guide here)
Columbia Land Conservancy
Harlem Valley Rail Trail
Hudson-Mohawk Bird Club
Hudson River Valley Greenway CHANGED 12/28/12
John Burroughs Association
National Audubon Society
National Wildlife Federation
The Nature Conservancy
The New York State Bluebird Society
New York State Department of
      Environmental Conservation
New York State Ornithological Association
New York State Young Birders Club ADDED 12/28/12
Ralph T. Waterman Bird Club
     (Dutchess County)
Scenic Hudson

Projects and Data

BirdSource - Bird counts and count data (Cornell / National Audubon)
Breeding Bird Atlas - Home Page (NYSDEC)
Hudson River Almanac (NYSDEC)
NYSOA Waterfowl Count
Migratory Bird Research - Patuxent Bird Population Studies
New York State Avian Records Committee (NYSOA/NYSARC)
North American Breeding Bird Survey
Project Feederwatch (Cornell Laboratory of Ornithology)

Reference

AOU Checklist CHANGED 12/28/12
Bent Life Histories (Birdzilla.com) CHANGED 12/28/12 - Enter a species name in the Search box, click Search, and then click the Bent Life History button at the upper right after you get to the species detail page.
Birding on the Net (Siler--previously Birding on the Web)