BirdAnalyst
BBS Route · Wyoming · BCR 10

Carter Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 33 species recorded across 2 survey years, no longer active.

33Species 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 →
2Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2006–2016Span
2Observers

Bird Species Found on Wyoming Carter

Top 33 of 33 species by most recent count. Each links to its species trend.

Species recorded on the Carter 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
Black-billed MagpieCorvidae682016+518%2006
Horned LarkAlaudidae422016-14%2006
Sage ThrasherMimidae312016-24%2006
Brewer's SparrowPasserellidae252016-72%2006
Brewer's BlackbirdIcteridae132016-38%2006
Vesper SparrowPasserellidae132016-69%2006
Mourning DoveColumbidae112016-83%2006
Sagebrush SparrowPasserellidae112016-50%2006
Common RavenCorvidae102016n/an/a
Mountain BluebirdTurdidae92016+125%2006
Northern Rough-winged SwallowHirundinidae92016n/an/a
Cliff SwallowHirundinidae82016n/an/a
Red-tailed HawkAccipitridae62016+100%2006
Brown-headed CowbirdIcteridae62006n/an/a
American RobinTurdidae62006n/an/a
Cassin's FinchFringillidae62016n/an/a
Pinyon JayCorvidae42006n/an/a
European StarlingSturnidae42016-43%2006
Western MeadowlarkIcteridae42016-60%2006
Golden EagleAccipitridae42016n/an/a
House SparrowPasseridae42016n/an/a
Ferruginous HawkAccipitridae32016+50%2006
American KestrelFalconidae32016+200%2006
Barn SwallowHirundinidae32016n/an/a
Loggerhead ShrikeLaniidae22016+100%2006
Rock WrenTroglodytidae22016-87%2006
KilldeerCharadriidae12006n/an/a
House FinchFringillidae12006n/an/a
Chipping SparrowPasserellidae12006n/an/a
Green-tailed TowheePasserellidae12006n/an/a
Violet-green SwallowHirundinidae12006n/an/a
Prairie FalconFalconidae12016n/an/a
Eurasian Collared-DoveColumbidae12016n/an/a

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