BirdAnalyst
BBS Route · Colorado · BCR 18

Gordon Creek Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 64 species recorded across 27 survey years, still active.

64Species 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 →
1988–2025Span
5Observers

Bird Species Found on Colorado Gordon Creek

Top 40 of 64 species by most recent count. Each links to its species trend.

Species recorded on the Gordon Creek 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 LarkAlaudidae1662025-27%1991
Western MeadowlarkIcteridae1142025-41%1991
Lark BuntingPasserellidae972025-57%1991
Mourning DoveColumbidae482025-28%1991
American CrowCorvidae272018+162%1992
Red-winged BlackbirdIcteridae212025-78%1991
Western KingbirdTyrannidae172025-16%1991
Common GrackleIcteridae162025-29%1991
Eurasian Collared-DoveColumbidae122025+62%2015
Mountain PloverCharadriidae71998+600%1993
Brown-headed CowbirdIcteridae52025+57%1991
House SparrowPasseridae52025-75%1991
American AvocetRecurvirostridae51999+13%1995
Grasshopper SparrowPasserellidae42025-93%1991
Ring-necked PheasantPhasianidae32025-94%1991
Chestnut-collared LongspurCalcariidae32005+33%1991
American RobinTurdidae32025+150%1991
European StarlingSturnidae32025-40%1992
Cassin's SparrowPasserellidae32025-27%1992
Northern ShovelerAnatidae31996+200%1995
House FinchFringillidae32024+17%2018
Ferruginous HawkAccipitridae32005+150%1998
Lark SparrowPasserellidae32025+175%2015
Northern HarrierAccipitridae22022-67%1991
Swainson's HawkAccipitridae22025-75%1991
Burrowing OwlStrigidae22016+14%1991
Bullock's OrioleIcteridae22003-17%1993
Barn SwallowHirundinidae22025-6%1991
Loggerhead ShrikeLaniidae22021-17%1992
MallardAnatidae22025-53%1994
Northern PintailAnatidae21998-33%1995
Yellow WarblerParulidae21996n/an/a
Wild TurkeyPhasianidae22010+0%2007
Vesper SparrowPasserellidae22024+133%2021
Song SparrowPasserellidae22023+100%2018
KilldeerCharadriidae12024-58%1991
Eastern KingbirdTyrannidae11995+33%1993
Black-billed MagpieCorvidae11997-38%1992
Rock PigeonColumbidae12025-11%1994
Say's PhoebeTyrannidae12023-25%1994

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