BirdAnalyst
BBS Route · Colorado · BCR 16

Gold Hill 2 Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 69 species recorded across 6 survey years, still active.

69Species 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 →
6Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2018–2024Span
1Observers

Bird Species Found on Colorado Gold Hill 2

Top 40 of 69 species by most recent count. Each links to its species trend.

Species recorded on the Gold Hill 2 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
Violet-green SwallowHirundinidae282024-1%2021
Broad-tailed HummingbirdTrochilidae242024-11%2021
American CrowCorvidae132024+11%2021
Black-billed MagpieCorvidae112024+23%2021
Spotted TowheePasserellidae112024+8%2021
Mountain ChickadeeParidae102024+78%2021
American RobinTurdidae102024-14%2021
Western TanagerCardinalidae92024-6%2021
House FinchFringillidae92024+60%2021
Lesser GoldfinchFringillidae82024-44%2021
Western Wood-PeweeTyrannidae72024+11%2021
Warbling VireoVireonidae72024-22%2021
Ruby-crowned KingletRegulidae62023-46%2019
Mourning DoveColumbidae52024-50%2021
Common RavenCorvidae52024-33%2021
Pygmy NuthatchSittidae52024+19%2021
Steller's JayCorvidae42024-31%2021
Chipping SparrowPasserellidae42024-62%2021
Lincoln's SparrowPasserellidae42024+150%2021
Northern House WrenTroglodytidae42024-48%2021
Hairy WoodpeckerPicidae32024+14%2021
Pine SiskinFringillidae32024+0%2021
Tree SwallowHirundinidae32023+33%2019
White-breasted NuthatchSittidae32024-27%2021
Red-breasted NuthatchSittidae32023+0%2018
Olive-sided FlycatcherTyrannidae32023+100%2021
Yellow WarblerParulidae32023+50%2019
Virginia's WarblerParulidae32023n/an/a
American Three-toed WoodpeckerPicidae22018n/an/a
Hammond's FlycatcherTyrannidae22024+33%2021
Green-tailed TowheePasserellidae22024+0%2019
Plumbeous VireoVireonidae22024-20%2021
Hermit ThrushTurdidae22024-5%2021
Mountain BluebirdTurdidae22024-25%2019
Common NighthawkCaprimulgidae22024+100%2021
Red CrossbillFringillidae22024-33%2021
Common GrackleIcteridae22021n/an/a
Red-winged BlackbirdIcteridae22022n/an/a
Townsend's SolitaireTurdidae22022n/an/a
Common PoorwillCaprimulgidae22024n/an/a

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