BirdAnalyst
BBS Route · Colorado · BCR 16

Wilson Creek Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 112 species recorded across 32 survey years, still active.

112Species 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 →
32Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1990–2024Span
5Observers

Bird Species Found on Colorado Wilson Creek

Top 40 of 112 species by most recent count. Each links to its species trend.

Species recorded on the Wilson 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
Western MeadowlarkIcteridae842024+176%1993
American RobinTurdidae382024+9%1993
Green-tailed TowheePasserellidae312024-43%1993
Brewer's BlackbirdIcteridae302024+90%1993
Brewer's SparrowPasserellidae282024+95%1993
Black-billed MagpieCorvidae242024-18%1993
Spotted TowheePasserellidae242024+77%1993
Warbling VireoVireonidae222024+41%1993
Sage ThrasherMimidae182024-10%1993
Cliff SwallowHirundinidae172024-27%1994
Violet-green SwallowHirundinidae162024+24%1993
Red-winged BlackbirdIcteridae132024+100%1994
Pinyon JayCorvidae132023-30%1995
Black-headed GrosbeakCardinalidae122024+16%1993
Western TanagerCardinalidae112024+400%1997
Mourning DoveColumbidae102024-33%1993
Vesper SparrowPasserellidae102024-36%1993
Virginia's WarblerParulidae102024-40%1993
Song SparrowPasserellidae92024-17%1993
Common NighthawkCaprimulgidae82024+55%1993
Northern House WrenTroglodytidae82024-63%1993
MacGillivray's WarblerParulidae82024+7%1994
American CrowCorvidae72024+167%1995
Yellow WarblerParulidae72024+91%1993
Common GrackleIcteridae62018n/an/a
Rock WrenTroglodytidae52024-40%1993
Broad-tailed HummingbirdTrochilidae42024-53%1993
Lazuli BuntingCardinalidae42024-43%1993
Red-tailed HawkAccipitridae32024+33%1993
American KestrelFalconidae32024+25%1993
Barn SwallowHirundinidae32024+0%1993
Northern Rough-winged SwallowHirundinidae32024-54%1993
Ash-throated FlycatcherTyrannidae32024+25%1998
Black-throated Gray WarblerParulidae32019+40%1999
Canyon WrenTroglodytidae32018+60%1999
Turkey VultureCathartidae22024+67%2000
Dusky FlycatcherTyrannidae22024-71%1993
Horned LarkAlaudidae22024+75%1993
Woodhouse's Scrub-JayCorvidae22024-17%1996
American GoldfinchFringillidae22023+0%1993

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