BirdAnalyst
BBS Route · Idaho · BCR 9

Craters Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 86 species recorded across 40 survey years, still active.

86Species 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 →
40Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1979–2018Span
1Observers

Bird Species Found on Idaho Craters

Top 40 of 86 species by most recent count. Each links to its species trend.

Species recorded on the Craters 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 MeadowlarkIcteridae332018-69%1981
European StarlingSturnidae212018-2%1981
Horned LarkAlaudidae192018-83%1981
Common RavenCorvidae16201818×1984
Sage ThrasherMimidae152018-64%1981
Brewer's SparrowPasserellidae142018-87%1981
Brewer's BlackbirdIcteridae132018-75%1981
Vesper SparrowPasserellidae112018-89%1981
Rock PigeonColumbidae92018+13%1988
Mourning DoveColumbidae92018-85%1981
Savannah SparrowPasserellidae82017+133%1983
Black-billed MagpieCorvidae72018+3%1981
Barn SwallowHirundinidae72018+90%1981
Violet-green SwallowHirundinidae71993+100%1985
Greater Sage-GrousePhasianidae62012-10%1981
Red-winged BlackbirdIcteridae62018+46%1981
American RobinTurdidae62018-66%1981
California GullLaridae61996+200%1987
American WigeonAnatidae51987n/an/a
Yellow-headed BlackbirdIcteridae42017+167%1981
Rock WrenTroglodytidae42018-61%1981
Burrowing OwlStrigidae42016+50%1995
Great Blue HeronArdeidae41988+233%1984
Swainson's HawkAccipitridae32018+20%1983
Short-eared OwlStrigidae32016-38%1983
Brown-headed CowbirdIcteridae32017-63%1981
Ring-billed GullLaridae31983n/an/a
Pine SiskinFringillidae31987n/an/a
Cedar WaxwingBombycillidae31993n/an/a
KilldeerCharadriidae22018+20%1981
American KestrelFalconidae22018-29%1981
American CrowCorvidae22018-64%1981
Northern HarrierAccipitridae22018+67%1984
Cliff SwallowHirundinidae22018+38%1985
Loggerhead ShrikeLaniidae22017+67%2002
Cinnamon TealAnatidae21983+0%1982
Northern ShovelerAnatidae21984n/an/a
Common NighthawkCaprimulgidae22006-42%1989
Grasshopper SparrowPasserellidae22004+25%1988
Tree SwallowHirundinidae22011-95%1987

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