BirdAnalyst
BBS Route · Colorado · BCR 18

Wildhorse L Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 83 species recorded across 27 survey years, still active.

83Species 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 →
1988–2024Span
4Observers

Bird Species Found on Colorado Wildhorse L

Top 40 of 83 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 MeadowlarkIcteridae2522024+41%1990
Horned LarkAlaudidae1692024-24%1990
Mourning DoveColumbidae1312024+12%1990
Lark BuntingPasserellidae782024-41%1990
Grasshopper SparrowPasserellidae552024-49%1990
European StarlingSturnidae392024+408%1990
American White PelicanPelecanidae352024+40%2002
Eared GrebePodicipedidae302015n/an/a
Ruddy DuckAnatidae242015n/an/a
Red-winged BlackbirdIcteridae232024-55%1990
Common GrackleIcteridae23202415×1993
MallardAnatidae202024-64%1990
Brown-headed CowbirdIcteridae192024+223%1991
Western KingbirdTyrannidae172024+33%1990
Cliff SwallowHirundinidae172023+227%2015
DickcisselCardinalidae162024+475%2010
Canada GooseAnatidae152021+0%1999
American CootRallidae132015-68%1998
Cassin's SparrowPasserellidae112024-37%1990
KilldeerCharadriidae82024+0%1990
House SparrowPasseridae82024-57%1990
American CrowCorvidae72012+167%1990
Double-crested CormorantPhalacrocoracidae72024+600%2004
Black-necked StiltRecurvirostridae61999+500%1998
Green-winged TealAnatidae52024+17%1989
Ring-necked PheasantPhasianidae52024-87%1990
American RobinTurdidae52024+43%1991
Yellow-billed CuckooCuculidae52012+250%1998
Great Blue HeronArdeidae52000+167%1993
Northern ShovelerAnatidae52024-54%2015
Mountain PloverCharadriidae52000+400%1998
GadwallAnatidae52023+400%2015
Barn SwallowHirundinidae42024-54%1990
American AvocetRecurvirostridae42024-13%1998
Black-billed MagpieCorvidae42000+100%1990
Turkey VultureCathartidae42024+325%2012
Brewer's BlackbirdIcteridae42015-46%2003
Long-billed CurlewScolopacidae41999n/an/a
Savannah SparrowPasserellidae42000n/an/a
Rock PigeonColumbidae32024-40%1990

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