BirdAnalyst
BBS Route · Colorado · BCR 10

Browns Park Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 94 species recorded across 21 survey years, still active.

94Species 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 →
21Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1992–2024Span
8Observers

Bird Species Found on Colorado Browns Park

Top 40 of 94 species by most recent count. Each links to its species trend.

Species recorded on the Browns Park 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
Brewer's SparrowPasserellidae982024+80%1994
Western MeadowlarkIcteridae822024+32%1994
Woodhouse's Scrub-JayCorvidae632006n/an/a
Sage ThrasherMimidae462024-28%1994
Barn SwallowHirundinidae362007+333%1999
Canada GooseAnatidae302015n/an/a
Sagebrush SparrowPasserellidae242024-59%1994
Mourning DoveColumbidae222024+21%1994
Vesper SparrowPasserellidae212024-18%1994
Lark SparrowPasserellidae152024+58%1994
Northern Rough-winged SwallowHirundinidae152024+213%1994
Red-winged BlackbirdIcteridae112024-40%1994
Spotted TowheePasserellidae112024+79%1994
Horned LarkAlaudidae92024-36%1994
Ash-throated FlycatcherTyrannidae82024+78%1996
Black-billed MagpieCorvidae72024+36%1994
Mountain BluebirdTurdidae72024-78%1994
Western KingbirdTyrannidae52024+71%1998
Pinyon JayCorvidae42024-94%1995
Brown-headed CowbirdIcteridae42024-27%1994
Yellow WarblerParulidae42024+29%1994
Common YellowthroatParulidae42024+57%1994
Bewick's WrenTroglodytidae42024-9%1994
Northern House WrenTroglodytidae42024+0%1994
Bank SwallowHirundinidae42006+300%1994
American CrowCorvidae42022+14%2006
American White PelicanPelecanidae42006n/an/a
Common NighthawkCaprimulgidae32022+0%1995
Rock WrenTroglodytidae32024+0%1994
Wilson's SnipeScolopacidae32024+300%1997
Gray FlycatcherTyrannidae32024+29%1995
Common RavenCorvidae32024+171%1996
House FinchFringillidae32022-54%1996
Great Blue HeronArdeidae32015+150%1997
American KestrelFalconidae22022+260%1994
Chipping SparrowPasserellidae22024-61%1995
Song SparrowPasserellidae22024-50%1994
Green-tailed TowheePasserellidae22024-58%1994
Cliff SwallowHirundinidae22022-51%1994
Blue-gray GnatcatcherPolioptilidae22024+0%1994

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