Species · Oklahoma · BBS 2025 Release · 1966–2024
Black-billed Magpie Population Trend in Oklahoma
Black-billed Magpie in Oklahoma has fallen sharply: down 57% on the route-weighted index since 1971.
-57%Since 1971
3Routes In State
12Years
Notable Black-billed Magpie Trends in Oklahoma
long arc declinecomputed index
Black-billed Magpie has fallen sharply in Oklahoma: down 56% on the route-weighted index since 1971.
Black-billed Magpie Survey Routes in Oklahoma
Black-billed Magpie Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.