Species · Pennsylvania · BBS 2025 Release · 1966–2024
Prothonotary Warbler Population Trend in Pennsylvania
Prothonotary Warbler in Pennsylvania has edged down: down 25% on the route-weighted index since 1989.
-25%Since 1989
6Routes In State
14Years
Notable Prothonotary Warbler Trends in Pennsylvania
No notable trend signals for Prothonotary Warbler in Pennsylvania. See the full index history below.
Prothonotary Warbler Survey Routes in Pennsylvania
| Lynch | 2 | 1999 | 1969 |
| N Washington | 2 | 1989 | 1989 |
| Landisburg | 1 | 2024 | 1995 |
| Honesdale | 1 | 1998 | 1998 |
| Eldred | 1 | 1975 | 1975 |
| Jeannette | 1 | 2023 | 2023 |
Prothonotary Warbler Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.