BirdAnalyst
BBS Route · Colorado · BCR 18

Gordon Creek Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 64 species recorded across 26 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 →
26Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1988–2024Span
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 LarkAlaudidae2272024-19%1991
Western MeadowlarkIcteridae1042024-43%1991
Mourning DoveColumbidae472024-30%1991
Lark BuntingPasserellidae432024-62%1991
Red-winged BlackbirdIcteridae342024-75%1991
American CrowCorvidae272018+162%1992
Barn SwallowHirundinidae222022+3%1991
Common GrackleIcteridae172024-44%1991
Western KingbirdTyrannidae152024-25%1991
Mountain PloverCharadriidae71998+600%1993
Lark SparrowPasserellidae72024+167%2005
Brown-headed CowbirdIcteridae52024+0%1991
American AvocetRecurvirostridae51999+13%1995
Rock PigeonColumbidae52023+89%1994
Swainson's HawkAccipitridae42024-69%1991
Chestnut-collared LongspurCalcariidae32005+33%1991
American RobinTurdidae32024+200%1991
Cassin's SparrowPasserellidae32024+27%1992
Northern MockingbirdMimidae32023+50%1995
Northern ShovelerAnatidae31996+200%1995
House FinchFringillidae32024+17%2018
Ferruginous HawkAccipitridae32005+150%1998
Northern HarrierAccipitridae22022-67%1991
Burrowing OwlStrigidae22016+14%1991
Bullock's OrioleIcteridae22003-17%1993
Grasshopper SparrowPasserellidae22024-95%1991
Loggerhead ShrikeLaniidae22021-17%1992
House SparrowPasseridae22024-71%1991
MallardAnatidae22024-53%1994
Northern PintailAnatidae21998-33%1995
Yellow WarblerParulidae21996n/an/a
Wild TurkeyPhasianidae22010+0%2007
Vesper SparrowPasserellidae22024+133%2021
Song SparrowPasserellidae22023+100%2018
KilldeerCharadriidae12024-58%1991
Ring-necked PheasantPhasianidae12024-94%1991
Eastern KingbirdTyrannidae11995+33%1993
Black-billed MagpieCorvidae11997-38%1992
European StarlingSturnidae12023-40%1992
Say's PhoebeTyrannidae12023-25%1994

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