North America
- 241
- Toledo Naturalists' Association
- Programs, field trips, sightings message board, bird count results, and list of hot spots.
- 243
- Oklahoma Bird Records Committee
- Evaluates records of rare birds. Forms, hints for writing documentations, photo gallery, official state list, and reports.
- 245
- Cacades Raptor Center
- A non-profit nature center and wildlife hospital specializing in birds of prey. Located in Eugene, Oregon.
- 246
- John Scharff Migratory Bird Festival
- Annual event held the first full weekend in April in Burns, witnessing the spectacular spring migration in the Harney Basin of Southeast Oregon.
- 247
- Journal of Oregon Ornithology
- Archive of articles based on Oregon field studies of bird distribution, migration, and abundance.
- 252
- Birds (and Animals) Around Carnegie Mellon
- Weblog and photo gallery of birds and other animals in Pittsburgh.
- 253
- Eastern PA Birding
- Photos of rarities in east-central Pennsylvania and from other birding adventures by Dave DeReamus.
- 254
- Hawk Mountain Sanctuary
- Bird refuge offering opportunities to view migrating raptors. Site contains counts of sightings.
- 255
- McConaughy's Birding Page
- Central Pennsylvania Birdline, hawk watch results, and photos and descriptions of rarities.
- 257
- State College Bird Club
- Serves the State College, Centre County area. Schedule of events, hotspots, breeding bird atlas, rare bird alerts, and birding resources.