Migration returns, breeding begins, and warblers arrive.
Example states:
Maine
Rocky coast and boreal forests.
View state
Florida
Wetlands, shorelines and year-round birds.
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Colorado
Mountains, canyons and high-elevation species.
View state
Arizona
Deserts, canyons and diverse habitats.
View state
Michigan
Great Lakes, forests and migratory stopovers.
View state
Washington
Mountains, rainforests and coastal wonders.
View state
Seasonal birding windows
See what is happening in the field throughout the year.
Four windows, four different bird lists.
Peak breeding, full song, and family activity.
Example states:Migration in motion and spectacular stopovers.
Example states:Hardy birds shine and rare visitors may appear.
Example states:Start local, then move into species.
Explore states by region, then dive into local checklists and species.
Forests, coastlines and migratory corridors.
Browse allWetlands, forests and year-round diversity.
Browse allPrairies, lakes and major migration routes.
Browse allMountains, deserts, islands and iconic landscapes.
Browse allTop birding destinations
Popular hotspots and states known for exceptional birding.
Point Reyes, California
Coastal migration and ocean birds.
Yellowstone, Wyoming
Wild landscapes and abundant wildlife.
Magee Marsh, Ohio
Warbler capital during spring migration.
Madera Canyon, Arizona
Desert birds and mountain scenery.
Monhegan Island, Maine
Seabirds, raptors and scenic coastal trails.
Everglades, Florida
Unique ecosystems and year-round birds.
Page purpose
Use this hub when place, season, or regional probability should narrow the answer first.
A state and region gateway for local bird lists, seasonal windows, hotspots, and state-level entry points.
A national bird answer can be technically true and still useless if it ignores where the reader is standing.
Begin with state or region, then use season, habitat, and likely species routes to keep the reading path local.
Our method
Data first, then field-guide prose.
Measurements, range boundaries, and conservation status come from the data pipeline and are never written from memory. Prose explains what the data already says - it adds field context, not numbers.
Questions birders ask
Does KnowThePerch cover all 50 US states?
Yes. The location system covers all 50 states, with eBird frequency data localized per state and broken out by season.
How is frequency data calculated for a state?
Frequency figures come from eBird observation records. The pipeline calculates the percentage of checklists in which each species appears, separated by season.
Can I see which birds to expect in a state right now?
State landing pages show current-season frequency by default. Seasonal pages break the year into breeding, wintering, migration, and year-round windows.
Found an error? Help us fix it.
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