BirdAnalyst
BBS Route · Colorado · BCR 16

Ragged Mtn. Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 113 species recorded across 27 survey years, still active.

113Species 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 →
27Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1994–2025Span
2Observers

Bird Species Found on Colorado Ragged Mtn.

Top 40 of 113 species by most recent count. Each links to its species trend.

Species recorded on the Ragged Mtn. 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 RobinTurdidae402025-26%1996
White-crowned SparrowPasserellidae272025-60%1996
Song SparrowPasserellidae272025+11%1996
Western Wood-PeweeTyrannidae222025+136%1996
Brown-headed CowbirdIcteridae202019+68%1996
Warbling VireoVireonidae192025-51%1996
Violet-green SwallowHirundinidae172025+55%1996
Green-tailed TowheePasserellidae162025-61%1996
Spotted TowheePasserellidae152019-69%1996
Yellow WarblerParulidae142025+36%1996
Mountain BluebirdTurdidae122025-37%1996
Lincoln's SparrowPasserellidae102025+60%2001
American CrowCorvidae92025+86%1996
Virginia's WarblerParulidae82019+50%1996
European StarlingSturnidae72013+200%1997
Savannah SparrowPasserellidae72019-33%1996
Northern House WrenTroglodytidae72025+291%1996
Broad-tailed HummingbirdTrochilidae62025-30%1996
Olive-sided FlycatcherTyrannidae62025+50%1996
Vesper SparrowPasserellidae62025+267%2004
Purple MartinHirundinidae62025+20%1998
Black-billed MagpieCorvidae52025+38%1998
Common NighthawkCaprimulgidae42019+200%1999
Pine SiskinFringillidae42025-50%1996
MacGillivray's WarblerParulidae42025+42%1996
Western TanagerCardinalidae42025+83%1998
Clark's NutcrackerCorvidae42014n/an/a
Brewer's BlackbirdIcteridae32017-74%1996
Barn SwallowHirundinidae32012-38%1996
Wilson's WarblerParulidae32019-54%1997
Black-capped ChickadeeParidae32025+8%2017
Ruby-crowned KingletRegulidae32025+4%1996
Wilson's SnipeScolopacidae32012+50%1999
Cedar WaxwingBombycillidae32019+75%2010
Evening GrosbeakFringillidae32018+150%2014
Fox SparrowPasserellidae32025+150%2001
Wild TurkeyPhasianidae32018+200%2000
American KestrelFalconidae22016+100%1998
Black-chinned HummingbirdTrochilidae22016-60%2006
Red-winged BlackbirdIcteridae22025-57%1996

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14. A route is a sample, not a census.