Species · Illinois · BBS 2025 Release · 1966–2024
Chuck-will's-widow Population Trend in Illinois
Chuck-will's-widow in Illinois has collapsed: down 77% on the route-weighted index since 1971.
-77%Since 1971
4Routes In State
17Years
Notable Chuck-will's-widow Trends in Illinois
long arc declinecomputed index
Chuck-will's-widow has collapsed in Illinois: down 77% on the route-weighted index since 1971.
Chuck-will's-widow Survey Routes in Illinois
Chuck-will's-widow Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.