BirdAnalyst
BBS Route · Colorado · BCR 16

Rosevale Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 75 species recorded across 14 survey years, still active.

75Species 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 →
14Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2009–2024Span
1Observers

Bird Species Found on Colorado Rosevale

Top 40 of 75 species by most recent count. Each links to its species trend.

Species recorded on the Rosevale 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
House FinchFringillidae252024+52%2011
Mourning DoveColumbidae202024-6%2011
White-throated SwiftApodidae182024-52%2011
Mountain BluebirdTurdidae172024+6%2011
House SparrowPasseridae162024-47%2011
Blue-gray GnatcatcherPolioptilidae122024-20%2011
Common RavenCorvidae112024+79%2011
Ash-throated FlycatcherTyrannidae92024-38%2011
Brewer's SparrowPasserellidae92024-17%2011
Tree SwallowHirundinidae92024+100%2021
Northern Rough-winged SwallowHirundinidae92023+75%2011
Black-throated SparrowPasserellidae82024+23%2012
Sage ThrasherMimidae82024+75%2012
Rock WrenTroglodytidae72024-14%2011
American RobinTurdidae72024-9%2011
Western MeadowlarkIcteridae62024-25%2011
Vesper SparrowPasserellidae62024+60%2013
Virginia's WarblerParulidae62023+150%2011
Juniper TitmouseParidae62024-42%2011
BushtitAegithalidae62024n/an/a
Brown-headed CowbirdIcteridae52024+33%2011
Chipping SparrowPasserellidae52024-32%2011
Bewick's WrenTroglodytidae52024+33%2012
Cliff SwallowHirundinidae52024-39%2014
Gray VireoVireonidae52023+140%2017
Gambel's QuailOdontophoridae42024-35%2011
Lesser GoldfinchFringillidae42023-33%2014
Canyon WrenTroglodytidae42023+50%2014
Black-chinned HummingbirdTrochilidae32024+29%2011
Broad-tailed HummingbirdTrochilidae32009n/an/a
Horned LarkAlaudidae32024+28%2011
Pinyon JayCorvidae32024-63%2012
Spotted TowheePasserellidae32024-15%2011
Woodhouse's Scrub-JayCorvidae32024-9%2014
Red-breasted NuthatchSittidae32017+200%2013
Yellow-breasted ChatIcteriidae32024+200%2023
Western KingbirdTyrannidae22024-27%2011
Say's PhoebeTyrannidae22024+13%2011
Western Wood-PeweeTyrannidae22024+25%2012
Bullock's OrioleIcteridae22022+125%2013

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