BirdAnalyst
BBS Route · Colorado · BCR 18

Wildhorse L Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 84 species recorded across 28 survey years, still active.

84Species 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 →
28Years 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
4Observers

Bird Species Found on Colorado Wildhorse L

Top 40 of 84 species by most recent count. Each links to its species trend.

Species recorded on the Wildhorse L 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 MeadowlarkIcteridae3122025+58%1990
Horned LarkAlaudidae1782025-23%1990
Mourning DoveColumbidae1582025+44%1990
Lark BuntingPasserellidae712025-40%1990
Western KingbirdTyrannidae422025+62%1990
Grasshopper SparrowPasserellidae412025-43%1990
Common GrackleIcteridae35202519×1993
Eared GrebePodicipedidae302015n/an/a
Ruddy DuckAnatidae242015n/an/a
MallardAnatidae202025-46%1990
Cliff SwallowHirundinidae172023+227%2015
Canada GooseAnatidae152021+0%1999
Red-winged BlackbirdIcteridae142025-42%1990
Brown-headed CowbirdIcteridae132025+246%1991
American CootRallidae132015-68%1998
House SparrowPasseridae122025-41%1990
American RobinTurdidae92025+157%1991
European StarlingSturnidae82025+433%1990
Lark SparrowPasserellidae82025+36%1990
Eurasian Collared-DoveColumbidae82025+143%2022
KilldeerCharadriidae72025+33%1990
American CrowCorvidae72012+167%1990
Double-crested CormorantPhalacrocoracidae72024+600%2004
Swainson's HawkAccipitridae62025+9%1990
Black-necked StiltRecurvirostridae61999+500%1998
Green-winged TealAnatidae52024+17%1989
Eastern KingbirdTyrannidae52025-40%1990
Northern PintailAnatidae52025-56%1999
American AvocetRecurvirostridae52025+25%1998
Burrowing OwlStrigidae52025+200%1993
Yellow-billed CuckooCuculidae52012+250%1998
Great Blue HeronArdeidae52000+167%1993
American White PelicanPelecanidae52025+47%2002
Northern ShovelerAnatidae52024-54%2015
Mountain PloverCharadriidae52000+400%1998
GadwallAnatidae52023+400%2015
Ring-necked PheasantPhasianidae42025-83%1990
Red-tailed HawkAccipitridae42025+100%1993
Black-billed MagpieCorvidae42000+100%1990
Brown ThrasherMimidae42025+14%1999

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