BirdAnalyst
BBS Route · Colorado · BCR 16

Moffat Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 102 species recorded across 47 survey years, still active.

102Species 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 →
47Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1970–2025Span
17Observers

Bird Species Found on Colorado Moffat

Top 40 of 102 species by most recent count. Each links to its species trend.

Species recorded on the Moffat 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
Horned LarkAlaudidae742025-4%1972
Red-winged BlackbirdIcteridae582025-33%1972
Western MeadowlarkIcteridae542025-58%1972
Bewick's WrenTroglodytidae461987+140%1984
House SparrowPasseridae432025+700%1975
European StarlingSturnidae422025-30%1974
Common RavenCorvidae272025+143%1973
Black-billed MagpieCorvidae262025-32%1972
Vesper SparrowPasserellidae212025+544%1974
Brewer's BlackbirdIcteridae182025-59%1972
Sage ThrasherMimidae182025-25%1972
Mourning DoveColumbidae172025-7%1972
Band-tailed PigeonColumbidae171998+325%1980
Swainson's HawkAccipitridae132025+700%1975
American CrowCorvidae122024+260%1992
White-faced IbisThreskiornithidae121999+0%1991
Brown-headed CowbirdIcteridae72025-41%1978
Western BluebirdTurdidae71993+250%1978
Golden EagleAccipitridae62025+200%1977
Brewer's SparrowPasserellidae62025-80%1973
Red-tailed HawkAccipitridae62025+200%1984
Chipping SparrowPasserellidae62006+81%1984
Canada GooseAnatidae62019-46%1989
Green-tailed TowheePasserellidae52025+175%1978
Northern Rough-winged SwallowHirundinidae52003+78%1994
Savannah SparrowPasserellidae52025-88%1980
Cinnamon TealAnatidae42017-56%1974
Northern PintailAnatidae41995-36%1976
Grasshopper SparrowPasserellidae42016-91%2013
KilldeerCharadriidae32025-88%1972
Song SparrowPasserellidae32025-85%1974
Cliff SwallowHirundinidae32025-56%1972
Barn SwallowHirundinidae32025-65%1972
Rock PigeonColumbidae32025-71%1993
Common GrackleIcteridae32019+100%2010
American CootRallidae31995+50%1993
Marsh WrenTroglodytidae31995+50%1993
Eurasian Collared-DoveColumbidae32025-47%2013
Northern ShovelerAnatidae21987+50%1972
American AvocetRecurvirostridae22013+63%1975

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