BirdAnalyst
BBS Route · Wyoming · BCR 10

Carter 2 Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 81 species recorded across 8 survey years, still active.

81Species 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 →
2017–2025Span
1Observers

Bird Species Found on Wyoming Carter 2

Top 40 of 81 species by most recent count. Each links to its species trend.

Species recorded on the Carter 2 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
Eared GrebePodicipedidae1052025+258%2023
American CootRallidae802025-13%2021
Canada GooseAnatidae532025+238%2021
Sage ThrasherMimidae352025+6%2019
Vesper SparrowPasserellidae232025+48%2019
Cliff SwallowHirundinidae232025+21%2019
Brewer's SparrowPasserellidae222025+60%2019
House SparrowPasseridae172025+68%2019
Western GrebePodicipedidae172025+36%2021
Red-winged BlackbirdIcteridae162025+90%2019
Horned LarkAlaudidae152025-36%2019
Ruddy DuckAnatidae142025-30%2021
Black-billed MagpieCorvidae122025-34%2019
Common RavenCorvidae112025-43%2019
European StarlingSturnidae112025+105%2019
Yellow-headed BlackbirdIcteridae112025-31%2019
MallardAnatidae102025+50%2019
Brewer's BlackbirdIcteridae102025+59%2019
Mourning DoveColumbidae92025+5%2019
Western MeadowlarkIcteridae92025+0%2019
Ring-billed GullLaridae92021+0%2018
RedheadAnatidae92025+186%2021
Mountain BluebirdTurdidae82025+54%2019
Common NighthawkCaprimulgidae82025-70%2021
Marsh WrenTroglodytidae82024+0%2021
Brown-headed CowbirdIcteridae72025-36%2022
House FinchFringillidae62022+250%2018
KilldeerCharadriidae42025+250%2022
Sagebrush SparrowPasserellidae42025-71%2019
Loggerhead ShrikeLaniidae42024-46%2019
American RobinTurdidae42025+0%2019
CanvasbackAnatidae42025+175%2021
GadwallAnatidae42025+300%2019
Golden EagleAccipitridae32025-58%2019
Northern PintailAnatidae32022+200%2019
Eurasian Collared-DoveColumbidae32025-44%2022
Turkey VultureCathartidae32023n/an/a
Wilson's SnipeScolopacidae22025-25%2019
Northern HarrierAccipitridae22025+50%2023
Red-tailed HawkAccipitridae22024-73%2019

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