Species · Wyoming · BBS 2025 Release · 1966–2024

Yellow Warbler Population Trend in Wyoming

Yellow Warbler in Wyoming has increased: up 48% on the route-weighted index since 1970.

+48%Since 1970
108Routes In State
56Years

Notable Yellow Warbler Trends in Wyoming

No notable trend signals for Yellow Warbler in Wyoming. See the full index history below.

Yellow Warbler Population Forecast in Wyoming

If the recent trend holds, Yellow Warbler in Wyoming is projected to stay roughly flat through 2029, near 6.8 (95% range 4.3–9.4). A 5-year backtest shows a typical error of ±12.1%, with 100% of held-out values landing inside the 95% band.

+1%Change by 2029
6.8Projected 2029 index
4.39.495% range
±12.1%Backtest error
19682029
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
20256.74.29.2
20266.74.29.3
20276.84.29.3
20286.84.39.3
20296.84.39.4

Yellow Warbler Survey Routes in Wyoming

Routes recording Yellow Warbler in Wyoming.
Wilson8220241979
Alpine3420241979
Meeteetse3120241991
Dayton3120241980
Soda Lake2620241980
Bill2519991974
Green River2219841977
Midvale2120241975
Riverside2120241968
Cody2020241983
Moskee 22020212002
Seedskadee 22020242024
Mtn View1920241980
Moose1720241976
Boulder1720241982
Moran1720162002
Fontenelle1620241982
Fox Park1620241993
Buckskin Mtn1520211980
Harmony1520231982
Moskee 31520242022
Mayoworth1420241982
Basin1320241972
Colter Bay1319991968
Otto1220241970

Yellow Warbler Population Trend in Other States

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