BirdAnalyst
BBS Route · Idaho · BCR 9

Triangle Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 126 species recorded across 34 survey years, still active.

126Species 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 →
34Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1985–2025Span
5Observers

Bird Species Found on Idaho Triangle

Top 40 of 126 species by most recent count. Each links to its species trend.

Species recorded on the Triangle 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
Western MeadowlarkIcteridae662025-10%1987
Horned LarkAlaudidae222025-52%1987
European StarlingSturnidae222025+184%1987
American RobinTurdidae222025-20%1987
Vesper SparrowPasserellidae192025-20%1987
California QuailOdontophoridae162025+325%1987
Sage ThrasherMimidae152025+105%1987
Red-winged BlackbirdIcteridae142025-7%1987
Brewer's BlackbirdIcteridae142025+15%1987
Brewer's SparrowPasserellidae142025+44%1987
Red CrossbillFringillidae142021+180%2010
Northern Rough-winged SwallowHirundinidae122021+67%1989
Eurasian Collared-DoveColumbidae112025+250%2012
American CrowCorvidae102025+30%1987
Brown-headed CowbirdIcteridae102025-21%1987
Mourning DoveColumbidae92025+15%1987
Black-billed MagpieCorvidae9202511×1987
Lark SparrowPasserellidae92025-15%1987
Dusky FlycatcherTyrannidae92021+38%1997
Bank SwallowHirundinidae92025-27%2009
Bullock's OrioleIcteridae62025+100%1988
Western KingbirdTyrannidae52025+86%1987
Common RavenCorvidae52025+743%1987
Wilson's SnipeScolopacidae52021+60%1989
Cedar WaxwingBombycillidae52021-81%2000
Gray FlycatcherTyrannidae52025-14%1995
Sandhill CraneGruidae52025+11%1999
Forster's TernLaridae52014+100%2009
KilldeerCharadriidae42025+15%1987
Rock WrenTroglodytidae42025-46%1987
Mountain BluebirdTurdidae42025-34%1987
Rock PigeonColumbidae42021+50%1991
Western TanagerCardinalidae42025+44%1991
House SparrowPasseridae42025+227%1988
Barn SwallowHirundinidae42025+50%1992
Savannah SparrowPasserellidae42014-9%1996
Northern ShovelerAnatidae42005+100%1996
Spotted SandpiperScolopacidae32015+50%1995
Common NighthawkCaprimulgidae32025-39%1987
Cliff SwallowHirundinidae32025+21%1989

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14. A route is a sample, not a census.