Species · Maryland · BBS 2025 Release · 1966–2024
Winter Wren Population Trend in Maryland
Winter Wren in Maryland has increased: up 48% on the route-weighted index since 1993.
+48%Since 1993
6Routes In State
14Years
Notable Winter Wren Trends in Maryland
No notable trend signals for Winter Wren in Maryland. See the full index history below.
Winter Wren Survey Routes in Maryland
Winter Wren Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.