BirdAnalyst
Species · BCR 10 · BBS 2025 Release · 1966–2024

Olive-sided Flycatcher In Northern Rockies

All regionsNorthern RockiesAerial insectivores

Olive-sided Flycatcher in Northern Rockies has edged down: down 13% on the route-weighted index since 1970.

-13%Since 1970
126Routes In Region
56Years

Notable Signals

No notable trend signals for Olive-sided Flycatcher in Northern Rockies. See the full index history below.

Forecast

If the recent trend holds, Olive-sided Flycatcher in Northern Rockies is projected to rise about 38% by 2029 — from 0.79 in 2024 to a central estimate of 1.1 (95% range 0.51–1.7). A 5-year backtest shows a typical error of ±47.6%, with 100% of held-out values landing inside the 95% band.

+38%Change by 2029
1.1Projected 2029 index
0.51–1.795% range
±47.6%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
20251.10.491.6
20261.10.501.7
20271.10.501.7
20281.10.511.7
20291.10.511.7

Routes In Northern Rockies

Routes recording Olive-sided Flycatcher in Northern Rockies.
Deer ParkWASHINGTON142006
Lolo PassIDAHO132019
Cape HornIDAHO112024
SulaMONTANA82024
Black Mtn.OREGON82004
Spring LakeWASHINGTON82024
BurgdorfIDAHO72016
Yellow PineIDAHO72016
ArleeMONTANA72024
SkalkahoMONTANA71998
Soda LakeWYOMING72024
Swan LakeMONTANA62024
Hebgen LakeMONTANA62024
Ne EntranceWYOMING62021
GoldenIDAHO52016
PierceIDAHO52007
Whitefish LakeMONTANA52024
DesolationOREGON52007
Colter BayWYOMING51999
Sawtooth CtyIDAHO42014
Marble CreekIDAHO42023
Libby DamMONTANA42015
GreenoughMONTANA42004
LogdellOREGON41972
Eagle CreekOREGON42022

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