BirdAnalyst
BBS Route · Wyoming · BCR 10

Crowheart Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 84 species recorded across 8 survey years, still active.

84Species 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 →
8Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1987–2021Span
4Observers

Bird Species Found on Wyoming Crowheart

Top 40 of 84 species by most recent count. Each links to its species trend.

Species recorded on the Crowheart 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
Lark BuntingPasserellidae228200476×2002
Vesper SparrowPasserellidae342021-22%2003
Western MeadowlarkIcteridae322021-22%2003
Red-winged BlackbirdIcteridae232021+24%2003
Black-billed MagpieCorvidae222021+49%2003
Violet-green SwallowHirundinidae222016-35%2003
European StarlingSturnidae182021+53%2003
Brewer's SparrowPasserellidae122021+35%2003
Cliff SwallowHirundinidae122021+125%2003
Rock WrenTroglodytidae122021-12%2003
Mountain BluebirdTurdidae92021+84%2003
Canada GooseAnatidae92021+29%2003
Yellow-headed BlackbirdIcteridae92021+83%2005
Brewer's BlackbirdIcteridae82021-76%2003
Red-tailed HawkAccipitridae72016+300%2002
Lark SparrowPasserellidae72021-18%2005
Spotted TowheePasserellidae72021+100%2004
Sage ThrasherMimidae72021-22%2003
Horned LarkAlaudidae62021+4%2003
MallardAnatidae52021-25%2003
Song SparrowPasserellidae52021-10%2003
Yellow WarblerParulidae52021+22%2003
Northern House WrenTroglodytidae52021-9%2003
Ring-necked PheasantPhasianidae52021-48%2004
Bank SwallowHirundinidae52016-43%2004
Lazuli BuntingCardinalidae42016+0%1987
Barn SwallowHirundinidae42021-44%2003
American RobinTurdidae42021-62%2003
GadwallAnatidae42004n/an/a
Sandhill CraneGruidae42016-33%2005
Black-capped ChickadeeParidae42016+300%2004
Wilson's WarblerParulidae42005n/an/a
KilldeerCharadriidae32008-25%2003
Mourning DoveColumbidae32021-75%2003
Common RavenCorvidae32021-40%2003
Brown-headed CowbirdIcteridae32021-67%1987
Common GrackleIcteridae32021-62%2003
American GoldfinchFringillidae32021-29%2003
Wilson's SnipeScolopacidae32008-43%2003
Rock PigeonColumbidae32016+50%2005

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