BirdAnalyst
BBS Route · Montana · BCR 10

Elliston Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 135 species recorded across 51 survey years, still active.

135Species 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 →
51Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1968–2025Span
6Observers

Bird Species Found on Montana Elliston

Top 40 of 135 species by most recent count. Each links to its species trend.

Species recorded on the Elliston 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
Red-winged BlackbirdIcteridae552025+91%1970
European StarlingSturnidae402025+570%1970
Brewer's BlackbirdIcteridae312025+98%1970
Tree SwallowHirundinidae272025+88%1970
Warbling VireoVireonidae202025+209%1971
Yellow WarblerParulidae192025+183%1970
Common RavenCorvidae172025+400%1970
American RobinTurdidae172025-2%1970
Wilson's SnipeScolopacidae162025-8%1970
Ruby-crowned KingletRegulidae142025+450%1970
Cliff SwallowHirundinidae122025-40%1970
Canada GooseAnatidae122023+178%2006
Brown-headed CowbirdIcteridae112025+140%1970
Vesper SparrowPasserellidae112025+10%1970
Western MeadowlarkIcteridae102025-44%1970
Willow FlycatcherTyrannidae92025-44%1975
Song SparrowPasserellidae72025+400%1970
Barn SwallowHirundinidae72024+100%1970
Yellow-headed BlackbirdIcteridae72006+600%1977
American CrowCorvidae62025+0%1970
Evening GrosbeakFringillidae62023+122%1975
Rock PigeonColumbidae62025+163%1999
MallardAnatidae52025+100%1974
Canada JayCorvidae52013+14%1991
Northern WaterthrushParulidae52025+136%1975
Eastern KingbirdTyrannidae52025+80%1989
Black-billed MagpieCorvidae42025-59%1970
Wilson's PhalaropeScolopacidae42025-22%1981
Great Blue HeronArdeidae32025+67%1971
Spotted SandpiperScolopacidae32024-17%1976
KilldeerCharadriidae32024-59%1970
Steller's JayCorvidae32019+200%1968
Common YellowthroatParulidae32025+27%1970
Downy WoodpeckerPicidae31994+100%1979
Red CrossbillFringillidae32022-33%1993
Ruffed GrousePhasianidae32025+67%1998
Brewer's SparrowPasserellidae31987n/an/a
Lincoln's SparrowPasserellidae32025+29%1989
Ring-necked DuckAnatidae32025+50%2012
SoraRallidae22025-89%1970

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