BirdAnalyst
BBS Route · Montana · BCR 10

Heart Butte Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 85 species recorded across 9 survey years, still active.

85Species 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 →
9Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2015–2024Span
1Observers

Bird Species Found on Montana Heart Butte

Top 40 of 85 species by most recent count. Each links to its species trend.

Species recorded on the Heart Butte 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
Vesper SparrowPasserellidae702024-18%2017
Western MeadowlarkIcteridae592024-20%2017
Cliff SwallowHirundinidae452024+11%2017
Black-billed MagpieCorvidae362024-32%2017
MallardAnatidae25201925×2016
Brewer's BlackbirdIcteridae232024+18%2017
American RobinTurdidae222024+78%2017
European StarlingSturnidae202024-36%2017
Wilson's SnipeScolopacidae192024+2%2017
Horned LarkAlaudidae162024+76%2017
Savannah SparrowPasserellidae162024-7%2017
Common RavenCorvidae112024-5%2017
Clay-colored SparrowPasserellidae112024-6%2017
Northern House WrenTroglodytidae102024-6%2017
Eastern KingbirdTyrannidae82024+75%2018
Western Wood-PeweeTyrannidae82024+111%2017
Brown-headed CowbirdIcteridae82024+157%2018
American GoldfinchFringillidae82024+225%2018
White-crowned SparrowPasserellidae82024+0%2017
Yellow WarblerParulidae82024+10%2017
Red CrossbillFringillidae82017n/an/a
American CrowCorvidae72024+0%2017
Clark's NutcrackerCorvidae72021+167%2016
Baird's SparrowPasserellidae72019+50%2017
Gray CatbirdMimidae72024+200%2017
Long-billed CurlewScolopacidae62024-48%2017
Spotted TowheePasserellidae62024+8%2017
Chipping SparrowPasserellidae52024-8%2017
Ring-billed GullLaridae52024+133%2017
Mourning DoveColumbidae52024+267%2018
KilldeerCharadriidae42024+13%2017
Sharp-tailed GrousePhasianidae42024+133%2017
Red-winged BlackbirdIcteridae42024+86%2018
Tree SwallowHirundinidae42024-13%2017
Sandhill CraneGruidae32024-43%2017
Red-naped SapsuckerPicidae32024+33%2018
Mountain ChickadeeParidae32024-14%2017
VeeryTurdidae32024+50%2021
Canada GooseAnatidae22018-83%2015
SoraRallidae22024+0%2016

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