BirdAnalyst
BBS Route · Colorado · BCR 16

Westcliffe Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 101 species recorded across 23 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 →
23Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1998–2024Span
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
Western MeadowlarkIcteridae612024-57%2000
Red-winged BlackbirdIcteridae312024+33%2000
Vesper SparrowPasserellidae212024-54%2001
Common RavenCorvidae202024-50%2000
Cliff SwallowHirundinidae202023-12%2007
Western Wood-PeweeTyrannidae182024-47%2000
Violet-green SwallowHirundinidae172024-36%2000
Spotted TowheePasserellidae152024-41%2000
Horned LarkAlaudidae152024+40%2001
American RobinTurdidae112024-59%2000
Brewer's BlackbirdIcteridae102024-7%2000
White-crowned SparrowPasserellidae101998n/an/a
Sage ThrasherMimidae102015+27%2002
Lark BuntingPasserellidae82012+700%2000
Lesser GoldfinchFringillidae72024-53%2001
Black-billed MagpieCorvidae72024+57%2007
Broad-tailed HummingbirdTrochilidae52024-49%2000
Chipping SparrowPasserellidae52024-63%2000
Black-headed GrosbeakCardinalidae52024-50%2000
Western TanagerCardinalidae52024-73%2000
Red-breasted NuthatchSittidae52016+400%1998
Mountain BluebirdTurdidae52024-69%2000
Mourning DoveColumbidae52024-52%2001
Common NighthawkCaprimulgidae42000+100%1998
House FinchFringillidae42024-49%2000
Lark SparrowPasserellidae42024-43%2000
Tree SwallowHirundinidae42023+200%2002
Blue-gray GnatcatcherPolioptilidae42015-22%2001
Turkey VultureCathartidae42024-33%2013
Red-tailed HawkAccipitridae32024-29%2001
Western KingbirdTyrannidae32024+75%2001
Lincoln's SparrowPasserellidae31998n/an/a
White-throated SwiftApodidae31999n/an/a
Plumbeous VireoVireonidae32024-88%2001
Virginia's WarblerParulidae32024-13%2001
Western Screech-OwlStrigidae21998n/an/a
Pine SiskinFringillidae22016-46%2005
Canyon TowheePasserellidae21998n/an/a
Northern Rough-winged SwallowHirundinidae22024+0%2003
Canyon WrenTroglodytidae22010+75%2000

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