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Species · Oregon · BBS 2025 Release · 1966–2024

Ash-throated Flycatcher Population Trend in Oregon

All statesAerial insectivores

Ash-throated Flycatcher in Oregon has risen sharply: up 54% on the route-weighted index since 1970.

+54%Since 1970
49Routes In State
56Years

Notable Ash-throated Flycatcher Trends in Oregon

long arc increasecomputed index

Ash-throated Flycatcher has risen sharply in Oregon: up 53% on the route-weighted index since 1970.

Ash-throated Flycatcher Population Forecast in Oregon

If the recent trend holds, Ash-throated Flycatcher in Oregon is projected to fall about 38% by 2029 — from 1.7 in 2024 to a central estimate of 1.1 (95% range 0.23–1.9). A 5-year backtest shows a typical error of ±38.7%, with 60% of held-out values landing inside the 95% band.

-38%Change by 2029
1.1Projected 2029 index
0.23–1.995% range
±38.7%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
20251.00.201.9
20261.10.211.9
20271.10.221.9
20281.10.231.9
20291.10.231.9

Ash-throated Flycatcher Survey Routes in Oregon

Routes recording Ash-throated Flycatcher in Oregon.
Deschutes4420241968
Clover Creek2320241974
Madras1820241997
Twickenham1620242010
Green Mtn.1120241999
Emigrant Lake 2920242002
Sams Valley920241993
Merrill720221993
Derby619931968
Secret Val620221976
Catlow Rim620242004
Wagontire420241983
Emigrant Lk420001972
Summit Pr320241980
Bly 2320242012
Green320241995
Prospect320171996
Blitzen 2220231998
Imnaha219961979
Umpqua220241969
Fandango Can220241985
Days Creek220241973
Adrian220182018
Blizzard Gap220231984
Fish Lake220231978

Ash-throated Flycatcher Population Trend in Other States

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