BirdAnalyst
BBS Route · Colorado · BCR 16

Harmony Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 122 species recorded across 51 survey years, still active.

122Species 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 →
51Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1973–2024Span
3Observers

Bird Species Found on Colorado Harmony

Top 40 of 122 species by most recent count. Each links to its species trend.

Species recorded on the Harmony 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 SwallowHirundinidae1202024-64%1975
European StarlingSturnidae242024-79%1975
Common GrackleIcteridae232024+62%1975
House FinchFringillidae172024+408%1982
American RobinTurdidae162024+61%1975
Ring-billed GullLaridae142023+650%1991
Canada GooseAnatidae132024-44%1976
MallardAnatidae112024-15%1975
Rock PigeonColumbidae112024-31%1975
Bullock's OrioleIcteridae92024-22%1975
Black-billed MagpieCorvidae82024-45%1975
Barn SwallowHirundinidae82024-55%1975
Spotted TowheePasserellidae72024-62%1975
Eurasian Collared-DoveColumbidae72024+171%2009
Mourning DoveColumbidae62024-85%1975
Red-tailed HawkAccipitridae52024+200%1979
Swainson's ThrushTurdidae41975n/an/a
Lesser GoldfinchFringillidae42024-58%1980
White-throated SwiftApodidae32023-57%1979
Brown-headed CowbirdIcteridae32023-58%1975
Chipping SparrowPasserellidae31975+200%1973
Song SparrowPasserellidae32024+100%1976
Yellow WarblerParulidae32023-13%1975
Yellow-breasted ChatIcteriidae32024+92%1975
Bewick's WrenTroglodytidae31976+0%1973
Black-capped ChickadeeParidae32024+0%1980
Bank SwallowHirundinidae31980n/an/a
Blue JayCorvidae32024+220%1986
Red CrossbillFringillidae31982n/an/a
Western BluebirdTurdidae31990-63%1987
California GullLaridae32018+125%2000
Black PhoebeTyrannidae32018n/an/a
Turkey VultureCathartidae22024+71%1990
Broad-tailed HummingbirdTrochilidae22024-11%1977
Western KingbirdTyrannidae22024-10%1977
Ash-throated FlycatcherTyrannidae21973n/an/a
Red-winged BlackbirdIcteridae22024-68%1975
Western MeadowlarkIcteridae22024-96%1975
Brewer's BlackbirdIcteridae22022-87%1975
House SparrowPasseridae22024-94%1975

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