USA · North America
Birds of Pennsylvania
Pennsylvania's Appalachian ridges concentrate raptor migration in fall — Hawk Mountain Sanctuary is the original raptor migration count site. Spring brings warblers to the deciduous forests, and the state has more breeding warbler species than most.
- Documented species
- 435+
- Peak window
- Late April through mid-May (spring); August through November (raptors)
- Region
- North America
Signature species
These are the birds people specifically come to Pennsylvania to see. Birder AI identifies all of them on photo or sound.
- Ruffed GrouseBonasa umbellus
State bird; drumming display in spring.
- Cerulean WarblerSetophaga cerulea
Strongholds in the Allegheny National Forest.
- Golden-winged WarblerVermivora chrysoptera
Declining; State Game Lands hold remnant populations.
- Northern GoshawkAstur atricapillus
Rare resident; sometimes seen at Hawk Mountain in fall.
- Snow GooseAnser caerulescens
Massive concentrations at Middle Creek WMA in late February.
Top hotspots in Pennsylvania
- 1Hawk Mountain Sanctuary
Iconic fall raptor migration count.
- 2Middle Creek Wildlife Management Area
Tens of thousands of Snow Geese and Tundra Swans in late winter.
- 3Presque Isle State Park
Erie lakefront; warblers, gulls, and Long-tailed Duck in winter.
- 4Allegheny National Forest
Cerulean Warbler, Hooded Warbler, Wood Thrush.
Take Birder AI to Pennsylvania
Photo and sound ID with regional context built in. Every sighting you log here is tagged to your Pennsylvania list — and contributes anonymous data to better range maps for the species above.