Updated 2005-01-04

USA:
Birding Hotspots USA
Checklist for The United States
Peterson Online
Roger Tory Peterson Institute of Natural History
Cornell Lab of Ornithology
JASON VIII -- Field Study Center
BirdBand
Endangered Species Information System
Birder´s World The Magazine exploring wild birds and birding
Birding America
Rare Bird Record Committees pages
The Patuxent Bird Quiz
Shorebird Migration
Rare Bird Alerts - East
Bonnyville's a Bird Watcher's Paradise
BirdWatch
Western Field Ornithologists
DelMarVa Ornithological Society
Birds of the Great Lakes Region
Midwest/Great Lakes Birding Guide
USA State birds
TRIP REPORT & TRIP PLANNING
Birding In New England - Bird Stories/Trip Reports
A Collection of Trip Reports from the Lower 48 States
Pelagic birding in New England
The Nature Conservancy
US Natural Heritage Program
Optics for Birding
The Virtual Birder
Thayer Birding Software
The Bird Watcher's General Store