BirdAnalyst
Species · BCR 33 · BBS 2025 Release · 1966–2024

Red-shouldered Hawk In Sonoran and Mojave Deserts

All regionsSonoran and Mojave DesertsGeneralists

Red-shouldered Hawk in Sonoran and Mojave Deserts has declined: down 49% on the route-weighted index since 1980.

-49%Since 1980TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
4Routes In RegionSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
12YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable SignalsNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

No notable trend signals for Red-shouldered Hawk in Sonoran and Mojave Deserts. See the full index history below.

Routes In Sonoran and Mojave Deserts

Routes recording Red-shouldered Hawk in Sonoran and Mojave Deserts.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →
OnyxCALIFORNIA11997
Anza BorregoCALIFORNIA12003
PearblossomCALIFORNIA11987
Lone PineCALIFORNIA12011

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