Based on 1,377 research-grade iNaturalist observations in Idaho, Swainson's Hawk is most often recorded in August; in Idaho it behaves like a summer visitor / breeder. It ranks #14 among birds recorded in the state in our data.
Buteo swainsoni
Swainson's Hawk in Idaho by month
Bars show research-grade observations per month. They mix true seasonality with how often people are outdoors, so treat small numbers with caution.
Also seen in Idaho in August
Osprey
Mallard
Red-tailed Hawk
Great Blue Heron
Black-chinned Hummingbird
Ring-billed Gull
California Quail
Wild Turkey
Places to look in Idaho
National ForestBoise National Forest
National ForestCaribou–Targhee National Forest
National ForestSawtooth National Forest
State ParkCity of Rocks National Reserve
State ParkMassacre Rocks State Park
National ForestKaniksu National Forest
FAQ
When does Swainson's Hawk appear in Idaho?
Mainly April–September, with the most records in August.
How common is Swainson's Hawk in Idaho?
It ranks #14 by number of iNaturalist observations among birds in Idaho (1,377 records in our sample).