BirdAnalyst
BBS Route · Colorado · BCR 16

Westcliffe Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 101 species recorded across 24 survey years, still active.

101Species 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
6Observers

Bird Species Found on Colorado Westcliffe

Top 40 of 101 species by most recent count. Each links to its species trend.

Species recorded on the Westcliffe 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
Cliff SwallowHirundinidae202023-12%2007
Western MeadowlarkIcteridae152025-65%2000
White-crowned SparrowPasserellidae101998n/an/a
Violet-green SwallowHirundinidae102025-22%2000
Mountain BluebirdTurdidae102025-65%2000
Sage ThrasherMimidae102015+27%2002
Common RavenCorvidae82025-57%2000
Mourning DoveColumbidae82025-52%2001
Lark BuntingPasserellidae82012+700%2000
Spotted TowheePasserellidae72025-41%2000
American RobinTurdidae72025-64%2000
Pinyon JayCorvidae72025-80%2001
Horned LarkAlaudidae62025+55%2001
Black-billed MagpieCorvidae62025+57%2007
Western Wood-PeweeTyrannidae52025-55%2000
Black-headed GrosbeakCardinalidae52024-50%2000
Red-breasted NuthatchSittidae52016+400%1998
Common NighthawkCaprimulgidae42000+100%1998
Broad-tailed HummingbirdTrochilidae42025-61%2000
House FinchFringillidae42025-60%2000
Lark SparrowPasserellidae42025-43%2000
Chipping SparrowPasserellidae42025-54%2000
Tree SwallowHirundinidae42023+200%2002
Blue-gray GnatcatcherPolioptilidae42015-22%2001
Brewer's BlackbirdIcteridae32025-11%2000
Lincoln's SparrowPasserellidae31998n/an/a
Western TanagerCardinalidae32025-73%2000
House SparrowPasseridae32025-52%2000
White-throated SwiftApodidae31999n/an/a
Vesper SparrowPasserellidae32025-76%2001
Virginia's WarblerParulidae32024-13%2001
Turkey VultureCathartidae32025-25%2013
Eurasian Collared-DoveColumbidae32025+0%2013
Western Screech-OwlStrigidae21998n/an/a
Western KingbirdTyrannidae22025+75%2001
American CrowCorvidae22025-33%2003
Red-winged BlackbirdIcteridae22025-11%2000
Pine SiskinFringillidae22016-46%2005
Green-tailed TowheePasserellidae22025-72%2000
Canyon TowheePasserellidae21998n/an/a

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