BBS Route · Colorado · BCR 18

Edler Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 54 species recorded across 29 survey years, still active.

Bird Species Found on Colorado Edler

Top 40 of 54 species by most recent count. Each links to its species trend.

Species recorded on the Edler 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 LarkAlaudidae2272025-20%1994
Mourning DoveColumbidae1362025+14%1994
Western MeadowlarkIcteridae1332025-19%1994
Cassin's SparrowPasserellidae412025-64%1994
DickcisselCardinalidae282025+236%2017
House SparrowPasseridae272025-63%1994
Burrowing OwlStrigidae162025+27%1994
European StarlingSturnidae152025-38%2002
Great-tailed GrackleIcteridae152025+67%2006
Northern BobwhiteOdontophoridae122025+767%1996
Red-winged BlackbirdIcteridae112025+20%1994
Rock PigeonColumbidae82023-42%2000
American CrowCorvidae82011+42%1997
Grasshopper SparrowPasserellidae72025-93%1994
Barn SwallowHirundinidae72025+13%1994
Ring-necked PheasantPhasianidae62025-81%1994
Bullock's OrioleIcteridae62025-21%1994
Western KingbirdTyrannidae52025-72%1994
Chihuahuan RavenCorvidae52025+300%1994
Eurasian Collared-DoveColumbidae52025+133%2011
Blue-winged TealAnatidae52014n/an/a
American KestrelFalconidae52025n/an/a
Common GrackleIcteridae42025+141%1994
Red-tailed HawkAccipitridae42025+300%2011
Lark SparrowPasserellidae32025+0%1994
House FinchFringillidae32025-33%2021
Wilson's PhalaropeScolopacidae32014n/an/a
Swainson's HawkAccipitridae22025+39%1994
Great Horned OwlStrigidae22010+0%1992
Brown-headed CowbirdIcteridae22019+33%1997
Cliff SwallowHirundinidae22008+167%2000
Long-billed CurlewScolopacidae12025-92%1994
KilldeerCharadriidae12025-47%1994
Mountain PloverCharadriidae12013-50%1994
Scaled QuailOdontophoridae12025-62%1994
Golden EagleAccipitridae11992n/an/a
Common NighthawkCaprimulgidae12025-75%2001
Black-billed MagpieCorvidae12002-50%1992
Lark BuntingPasserellidae12025-50%1994
Northern MockingbirdMimidae12025-65%1994

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