BirdAnalyst
Species · Idaho · BBS 2025 Release · 1966–2024

Black Swift Population Trend in Idaho

All statesAerial insectivores

Black Swift in Idaho has fallen sharply: down 68% on the route-weighted index since 1989.

-68%Since 1989
3Routes In State
12Years

Notable Black Swift Trends in Idaho

long arc declinecomputed index

Black Swift has fallen sharply in Idaho: down 68% on the route-weighted index since 1989.

Black Swift Survey Routes in Idaho

Routes recording Black Swift in Idaho.
Burgdorf419891989
Naples420111973
Coolin120012001

Black Swift Population Trend in Other States

alaskacaliforniacoloradomontananew-mexicooregonutahwashington

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.