BirdAnalyst
Species · Wyoming · BBS 2025 Release · 1966–2024

Least Flycatcher Population Trend in Wyoming

All statesAerial insectivores

Least Flycatcher in Wyoming has surged: up 110% on the route-weighted index since 1977.

+110%Since 1977
34Routes In State
48Years

Notable Least Flycatcher Trends in Wyoming

long arc increasecomputed index

Least Flycatcher has surged in Wyoming: up 110% on the route-weighted index since 1977.

Least Flycatcher Population Forecast in Wyoming

If the recent trend holds, Least Flycatcher in Wyoming is projected to fall about 22% by 2029 — from 0.24 in 2024 to a central estimate of 0.18 (95% range 0.01–0.36). A 5-year backtest shows a typical error of ±54.6%, with 100% of held-out values landing inside the 95% band.

-22%Change by 2029
0.18Projected 2029 index
0.01–0.3695% range
±54.6%Backtest error
19752029
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
20250.180.010.35
20260.180.010.35
20270.180.010.35
20280.180.010.36
20290.180.010.36

Least Flycatcher Survey Routes in Wyoming

Routes recording Least Flycatcher in Wyoming.
Dayton620241983
Raven419951995
Hunter Peak320101986
Meeteetse320242003
Harmony320222013
Cody220242003
Otto220241993
Midvale220242017
Fontenelle220232023
Clark220112010
Moose220212021
Moskee220011986
Ethete220211993
Mayoworth220241987
Soda Lake220051996
Fiddler Lk219941992
Fletcher Pk220071992
Moskee 3220242022
Basin120242017
Sundance120221975
Colter Bay119951995
Dubois120112011
Nowood120141995
Brookhurst120122004
Seely 2120222022

Least Flycatcher Population Trend in Other States

alaskaarkansascaliforniacoloradoconnecticutgeorgiaidahoillinoisindianaiowakentuckymainemarylandmassachusettsmichiganminnesotamissourimontananebraskanew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaohiooregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseeutahvermontvirginiawashingtonwest-virginiawisconsin

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