BirdAnalyst
Guild · Pennsylvania · BBS 2025 Release · 1966–2024

Waterfowl In Pennsylvania

All statesPennsylvania

7 species in this guild. As a group they are +380% since 1968.

Guild Signals

No notable trend signals for waterfowl in Pennsylvania. See the full index history below.

Forecast

If the recent trend holds, Waterfowl in Pennsylvania is projected to rise about 43% by 2029 — from 1.7 in 2024 to a central estimate of 2.5 (95% range 1.3–3.7). A 5-year backtest shows a typical error of ±61.5%, with 100% of held-out values landing inside the 95% band.

+43%Change by 2029
2.5Projected 2029 index
1.3–3.795% range
±61.5%Backtest error
19662029
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected index95% low95% high
20252.41.23.6
20262.41.23.6
20272.41.23.6
20282.51.23.7
20292.51.33.7

Member Species In Pennsylvania

Waterfowl species in Pennsylvania.
American Black DuckAnatidae-75%
Hooded MerganserAnatidae-4%
MallardAnatidae+1%
Mute SwanAnatidae+47%
Wood DuckAnatidae+111%
Common MerganserAnatidae+935%
Canada GooseAnatidae75×

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