BirdAnalyst
BBS Route · Colorado · BCR 16

Cochetopa Pass Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 91 species recorded across 26 survey years, still active.

91Species 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 →
26Years 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
2Observers

Bird Species Found on Colorado Cochetopa Pass

Top 40 of 91 species by most recent count. Each links to its species trend.

Species recorded on the Cochetopa Pass 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
American RobinTurdidae352024-10%2000
American White PelicanPelecanidae28202428×2019
Brewer's BlackbirdIcteridae272024-44%2000
Hermit ThrushTurdidae252024+48%2000
Warbling VireoVireonidae232024+72%2000
Western Wood-PeweeTyrannidae212024+420%2000
Western MeadowlarkIcteridae192024-60%2000
Horned LarkAlaudidae172024-17%2000
Clark's NutcrackerCorvidae142024-5%2004
GadwallAnatidae132024-16%2000
Sage ThrasherMimidae132024+4%2000
Mountain ChickadeeParidae132024-60%2000
Ruby-crowned KingletRegulidae102024-37%2000
Vesper SparrowPasserellidae92024+2%2000
Chipping SparrowPasserellidae92024-5%2000
Common MerganserAnatidae92024+217%2007
Western TanagerCardinalidae92024+100%2002
Red-winged BlackbirdIcteridae82024-67%2000
Brewer's SparrowPasserellidae82024-12%2000
Pine SiskinFringillidae72024-70%2000
Red CrossbillFringillidae72007-30%2004
Common RavenCorvidae62024+16%2000
Green-tailed TowheePasserellidae62024+26%2000
White-crowned SparrowPasserellidae52024+100%2000
Mountain BluebirdTurdidae52024-69%2000
Great Blue HeronArdeidae52022+50%2008
Savannah SparrowPasserellidae42024-70%2000
Cliff SwallowHirundinidae42024-19%2000
Violet-green SwallowHirundinidae42024-4%2000
Red-breasted NuthatchSittidae42024+60%2001
Canada JayCorvidae32023-30%2002
Broad-tailed HummingbirdTrochilidae32024+133%2002
Dusky FlycatcherTyrannidae32024+40%2004
Lincoln's SparrowPasserellidae32024-73%2001
Northern House WrenTroglodytidae32024+400%2007
Red-tailed HawkAccipitridae32024+17%2007
Olive-sided FlycatcherTyrannidae32024+100%2008
Townsend's SolitaireTurdidae32023-14%2005
Williamson's SapsuckerPicidae32007+200%2005
Common NighthawkCaprimulgidae32014+200%2009

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