BirdAnalyst
BBS Route · Colorado · BCR 18

Mica Butte Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 69 species recorded across 15 survey years, no longer active.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 →
15Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1968–1987Span
3Observers

Bird Species Found on Colorado Mica Butte

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

Species recorded on the Mica Butte 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
Western MeadowlarkIcteridae4441987+178%1972
Horned LarkAlaudidae3981987+87%1972
Lark SparrowPasserellidae741987+420%1972
Western KingbirdTyrannidae651987+106%1972
Lark BuntingPasserellidae391987+228%1972
Mourning DoveColumbidae371987+75%1972
Cliff SwallowHirundinidae371987+72%1973
Red-winged BlackbirdIcteridae311987+933%1986
Northern MockingbirdMimidae191987-42%1972
Barn SwallowHirundinidae181987-6%1972
Cassin's KingbirdTyrannidae141987+26%1972
Bullock's OrioleIcteridae121987+20%1972
KilldeerCharadriidae121987+108%1973
Common NighthawkCaprimulgidae101987+4%1973
American AvocetRecurvirostridae91987+350%1982
Loggerhead ShrikeLaniidae71987-43%1972
Mountain PloverCharadriidae61982-27%1972
Cassin's SparrowPasserellidae51986-18%1974
Common RavenCorvidae51987+50%1974
MallardAnatidae51987+150%1982
Scaled QuailOdontophoridae41986+0%1972
Common GrackleIcteridae41987+117%1975
Blue GrosbeakCardinalidae41982+67%1975
Swainson's HawkAccipitridae31987+71%1972
Ferruginous HawkAccipitridae31981-33%1972
Rock WrenTroglodytidae31986+140%1972
Rock PigeonColumbidae31974n/an/a
Blue-winged TealAnatidae31987+50%1982
Red-tailed HawkAccipitridae31987+200%1986
House SparrowPasseridae21982-86%1972
Golden EagleAccipitridae21986+25%1977
American KestrelFalconidae21987+33%1974
Ash-throated FlycatcherTyrannidae21986+0%1976
Say's PhoebeTyrannidae21987-68%1973
Black-billed MagpieCorvidae21987-10%1973
European StarlingSturnidae21987+125%1973
Northern Rough-winged SwallowHirundinidae21971n/an/a
Greater RoadrunnerCuculidae21972n/an/a
Bewick's WrenTroglodytidae21978+100%1975
Brewer's SparrowPasserellidae21979+100%1976

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