BirdAnalyst
BBS Route · Colorado · BCR 16

Angora Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 109 species recorded across 24 survey years, still active.

109Species 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 →
24Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1998–2025Span
3Observers

Bird Species Found on Colorado Angora

Top 40 of 109 species by most recent count. Each links to its species trend.

Species recorded on the Angora 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
Spotted TowheePasserellidae462025+63%2000
Mountain BluebirdTurdidae272025+17%2000
Cliff SwallowHirundinidae25202518×2004
Lark SparrowPasserellidae24202525×2000
Blue-gray GnatcatcherPolioptilidae242025+96%2000
Green-tailed TowheePasserellidae202025-38%2000
House FinchFringillidae192025+69%2000
European StarlingSturnidae152023-53%2000
Mourning DoveColumbidae132025-13%2000
American RobinTurdidae122025-48%2000
Ash-throated FlycatcherTyrannidae92025+155%2000
Pinyon JayCorvidae92025-85%2000
Chipping SparrowPasserellidae92025+14%2000
Black-billed MagpieCorvidae82025-14%2000
Red-winged BlackbirdIcteridae82025+159%2000
Vesper SparrowPasserellidae82025+81%2000
Rock WrenTroglodytidae82025+68%2000
White-faced IbisThreskiornithidae82010+700%2009
Gray FlycatcherTyrannidae72025-52%2000
Black-throated Gray WarblerParulidae72025-34%2000
MacGillivray's WarblerParulidae72025-67%2000
Western MeadowlarkIcteridae62025-13%2000
Brewer's SparrowPasserellidae62025+76%2000
Juniper TitmouseParidae62025+63%2000
American CootRallidae62009+200%2005
Barn SwallowHirundinidae62025+63%2007
Common RavenCorvidae52025+143%2000
Western KingbirdTyrannidae42025+433%2000
Bewick's WrenTroglodytidae42025-79%2000
Woodhouse's Scrub-JayCorvidae32025+8%2000
Clark's NutcrackerCorvidae32025-8%2001
Pine SiskinFringillidae32025-42%2001
Plumbeous VireoVireonidae32025-48%2000
Virginia's WarblerParulidae32025+471%2000
Common YellowthroatParulidae32025+38%2000
Mountain ChickadeeParidae32025+180%2004
MallardAnatidae32024-57%2004
BushtitAegithalidae32022+50%2000
Cinnamon TealAnatidae32019+40%2004
Canada GooseAnatidae32025+180%2005

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