BirdAnalyst
BBS Route · Idaho · BCR 9

Glenns Ferry Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 66 species recorded across 4 survey years, no longer active.

66Species 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 →
4Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1968–1986Span
3Observers

Bird Species Found on Idaho Glenns Ferry

Top 40 of 66 species by most recent count. Each links to its species trend.

Species recorded on the Glenns Ferry 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 MeadowlarkIcteridae2581986+312%1969
European StarlingSturnidae2531986+382%1969
Bank SwallowHirundinidae162198627×1985
Red-winged BlackbirdIcteridae1381986+7%1969
Western KingbirdTyrannidae98198614×1969
House SparrowPasseridae881986+72%1969
Brewer's BlackbirdIcteridae841986-23%1969
Barn SwallowHirundinidae671986+252%1969
Horned LarkAlaudidae651986+30%1969
KilldeerCharadriidae521986+14%1969
American CootRallidae501969+67%1968
Mourning DoveColumbidae411986+5%1969
Northern Rough-winged SwallowHirundinidae321986-39%1969
Brown-headed CowbirdIcteridae27198627×1968
Cliff SwallowHirundinidae241986-27%1968
American GoldfinchFringillidae201986+150%1985
American CrowCorvidae191986+70%1969
Lark SparrowPasserellidae16198616×1968
Rock PigeonColumbidae151986+18%1969
Lazuli BuntingCardinalidae151986+200%1985
Ring-necked PheasantPhasianidae131986+586%1969
American RobinTurdidae131986+411%1969
Brewer's SparrowPasserellidae12198612×1985
Bullock's OrioleIcteridae111986+225%1969
California QuailOdontophoridae111986+0%1985
Forster's TernLaridae101968n/an/a
Ring-billed GullLaridae101986+400%1985
Common RavenCorvidae91986+200%1968
Long-billed CurlewScolopacidae81986+0%1985
California GullLaridae81986n/an/a
Vesper SparrowPasserellidae81986n/an/a
Black-billed MagpieCorvidae71986-80%1969
Rock WrenTroglodytidae51986+0%1985
Black-headed GrosbeakCardinalidae51986n/an/a
Yellow WarblerParulidae41986+100%1968
Northern HarrierAccipitridae41986+300%1969
House FinchFringillidae41986-20%1985
Black-throated SparrowPasserellidae41985n/an/a
Savannah SparrowPasserellidae41986n/an/a
Blue-winged TealAnatidae31968n/an/a

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