BirdAnalyst
BBS Route · Idaho · BCR 9

Preston Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 122 species recorded across 26 survey years, still active.

122Species RecordedSpecies recordedDistinct species detected on standard-protocol BBS runs here across all years on record — a measure of survey breadth, not a complete checklist.Full methodology →
26Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1988–2023Span
5Observers

Bird Species Found on Idaho Preston

Top 40 of 122 species by most recent count. Each links to its species trend.

Species recorded on the Preston route.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →Baseline yearThe first year of the smoothed window the trend is measured from. An earlier baseline means a longer record stands behind the number.Full methodology →History
Franklin's GullLaridae3782023+338%1991
House SparrowPasseridae972023+380%1990
Ring-necked PheasantPhasianidae612023+64%1990
Bank SwallowHirundinidae542023+3%1990
Canada GooseAnatidae522021+29%1991
Red-winged BlackbirdIcteridae462023-67%1990
Western MeadowlarkIcteridae412023-48%1990
White-faced IbisThreskiornithidae372023-92%1990
Mourning DoveColumbidae302023-42%1990
Cliff SwallowHirundinidae282023-19%1990
Black-billed MagpieCorvidae242023-77%1990
American RobinTurdidae242023-46%1990
Yellow-headed BlackbirdIcteridae222023-59%1990
RedheadAnatidae181994-61%1991
Eurasian Collared-DoveColumbidae172023+0%2016
Bullock's OrioleIcteridae152023+113%1990
Sandhill CraneGruidae122023-17%1990
European StarlingSturnidae122023-87%1990
Western KingbirdTyrannidae92023-13%1990
Brewer's BlackbirdIcteridae92023-40%1990
Forster's TernLaridae92004+250%1991
Cinnamon TealAnatidae82014+83%1990
Barn SwallowHirundinidae72023-70%1990
Great Blue HeronArdeidae62023+0%1990
Horned LarkAlaudidae62023-50%1990
Eared GrebePodicipedidae61993-67%1991
Northern ShovelerAnatidae51992n/an/a
Common RavenCorvidae52023+100%2004
Swainson's HawkAccipitridae42023+0%1990
Common NighthawkCaprimulgidae42008+67%1991
Northern House WrenTroglodytidae42016+13%1992
Short-eared OwlStrigidae41991n/an/a
Cedar WaxwingBombycillidae42021+120%2004
California GullLaridae32017+100%1994
Wilson's SnipeScolopacidae32023-68%1990
Red-tailed HawkAccipitridae32023-14%1990
Eastern KingbirdTyrannidae32023+29%1990
American GoldfinchFringillidae32023-60%1990
Song SparrowPasserellidae32023+33%1990
Green-tailed TowheePasserellidae31991+200%1988

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.