BirdAnalyst
BBS Route · Colorado · BCR 16

Walsenburg Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 101 species recorded across 22 survey years, still active.

101Species 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 →
22Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1994–2025Span
6Observers

Bird Species Found on Colorado Walsenburg

Top 40 of 101 species by most recent count. Each links to its species trend.

Species recorded on the Walsenburg 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
Lark SparrowPasserellidae68202511×1997
Cliff SwallowHirundinidae602025+521%1996
Spotted TowheePasserellidae592025+57%1996
Black-headed GrosbeakCardinalidae592025+359%1996
Western Wood-PeweeTyrannidae582025+139%1996
American RobinTurdidae422025+58%1996
Northern MockingbirdMimidae352025+168%1996
Ash-throated FlycatcherTyrannidae312025+473%2000
Cassin's KingbirdTyrannidae302025+750%1998
Mourning DoveColumbidae262025-6%1996
Western MeadowlarkIcteridae232025-59%1996
Turkey VultureCathartidae222025+900%2003
Plumbeous VireoVireonidae212025+444%1996
Bullock's OrioleIcteridae202025+325%1996
Woodhouse's Scrub-JayCorvidae192025+126%1996
Mountain BluebirdTurdidae192025+27%1996
Common RavenCorvidae182025+3%1996
Western KingbirdTyrannidae152025+560%1996
Brown-headed CowbirdIcteridae142025+38%1996
Rock WrenTroglodytidae132025+32%1997
Yellow WarblerParulidae122025+191%1996
Western TanagerCardinalidae112025+414%1998
Violet-green SwallowHirundinidae102025-17%1996
Northern House WrenTroglodytidae102025+33%1996
Blue GrosbeakCardinalidae102025+110%2016
Lesser GoldfinchFringillidae92025+105%1996
Bewick's WrenTroglodytidae92025+86%2022
Juniper TitmouseParidae82025+367%2008
Red-tailed HawkAccipitridae72025-13%1996
Chipping SparrowPasserellidae72025+22%1996
Canyon TowheePasserellidae72025+80%2003
House FinchFringillidae72025+238%2007
Yellow-breasted ChatIcteriidae72025+180%2007
Black-billed MagpieCorvidae62025+25%1996
White-breasted NuthatchSittidae62025+50%2007
Lazuli BuntingCardinalidae52025+250%2000
Wild TurkeyPhasianidae42023+36%2002
American KestrelFalconidae42025-38%1996
American CrowCorvidae42025-52%1996
European StarlingSturnidae42025-56%1996

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