BirdAnalyst
BBS Route · Colorado · BCR 16

Wilson Creek Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 113 species recorded across 33 survey years, still active.

113Species 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 →
33Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1990–2025Span
5Observers

Bird Species Found on Colorado Wilson Creek

Top 40 of 113 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
American RobinTurdidae342025+16%1993
Spotted TowheePasserellidae322025+60%1993
Western MeadowlarkIcteridae312025+152%1993
Vesper SparrowPasserellidae292025-24%1993
Green-tailed TowheePasserellidae262025-46%1993
Black-billed MagpieCorvidae232025-5%1993
Mourning DoveColumbidae192025-24%1993
Cliff SwallowHirundinidae172024-27%1994
American CrowCorvidae142025+189%1995
Brewer's SparrowPasserellidae142025+57%1993
Warbling VireoVireonidae142025+48%1993
Pinyon JayCorvidae132023-30%1995
Black-headed GrosbeakCardinalidae122025+28%1993
Song SparrowPasserellidae112025-22%1993
Red-winged BlackbirdIcteridae92025+155%1994
Violet-green SwallowHirundinidae92025+24%1993
Virginia's WarblerParulidae92025-38%1993
Northern House WrenTroglodytidae92025-59%1993
Orange-crowned WarblerParulidae82025+0%1993
Lazuli BuntingCardinalidae72025-38%1993
MacGillivray's WarblerParulidae62025-22%1994
Common GrackleIcteridae62018n/an/a
Common NighthawkCaprimulgidae52025+36%1993
Brewer's BlackbirdIcteridae52025+77%1993
Yellow WarblerParulidae52025+64%1993
Sage ThrasherMimidae52025-31%1993
Red-tailed HawkAccipitridae42025+67%1993
American KestrelFalconidae42025+13%1993
Dusky FlycatcherTyrannidae42025-71%1993
American GoldfinchFringillidae42025+13%1993
Rock WrenTroglodytidae32025-45%1993
Mountain BluebirdTurdidae32025-85%1993
Black-throated Gray WarblerParulidae32019+40%1999
Broad-tailed HummingbirdTrochilidae22025-57%1993
Say's PhoebeTyrannidae22025-38%1993
Horned LarkAlaudidae22024+75%1993
Woodhouse's Scrub-JayCorvidae22024-17%1996
Barn SwallowHirundinidae22025+20%1993
Bank SwallowHirundinidae21998+100%1990
Hermit ThrushTurdidae22023-13%1993

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