BirdAnalyst
BBS Route · Texas · BCR 35

Bear Mtn Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 91 species recorded across 27 survey years, still active.

91Species 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 →
27Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1988–2025Span
6Observers

Bird Species Found on Texas Bear Mtn

Top 40 of 91 species by most recent count. Each links to its species trend.

Species recorded on the Bear Mtn 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
Northern MockingbirdMimidae642025-29%1992
Black-throated SparrowPasserellidae472025+35%1992
House FinchFringillidae362025+71%1992
Ash-throated FlycatcherTyrannidae342025+216%1992
Mourning DoveColumbidae292025+10%1992
Canyon TowheePasserellidae242025-54%1992
White-throated SwiftApodidae212011+8%1993
Blue GrosbeakCardinalidae192025+41%1992
Western KingbirdTyrannidae152013-12%2006
Bell's VireoVireonidae142025+733%2006
Cactus WrenTroglodytidae122025-28%1992
VerdinRemizidae122025+250%2005
Curve-billed ThrasherMimidae112025-11%1992
White-winged DoveColumbidae102025-69%1992
Ladder-backed WoodpeckerPicidae102025+114%1992
Chipping SparrowPasserellidae102025+0%1993
Cassin's KingbirdTyrannidae92025-85%1992
Woodhouse's Scrub-JayCorvidae92025-63%1992
Common RavenCorvidae92025+27%1993
Lark SparrowPasserellidae82025-70%1992
Scaled QuailOdontophoridae52025+22%1992
Scott's OrioleIcteridae52025-63%1992
Bewick's WrenTroglodytidae52025-81%1993
Chihuahuan MeadowlarkIcteridae52025-93%1993
Mexican DuckAnatidae52025+18%1997
Greater RoadrunnerCuculidae42025+143%1992
Canyon WrenTroglodytidae42025+180%1999
Black-crested TitmouseParidae42025-76%1992
Western Wood-PeweeTyrannidae42024+60%1998
Band-tailed PigeonColumbidae41993n/an/a
Turkey VultureCathartidae32025-57%1992
Rufous-crowned SparrowPasserellidae32024-89%1993
PyrrhuloxiaCardinalidae32025+167%1992
Black-headed GrosbeakCardinalidae32025-77%1992
Hepatic TanagerCardinalidae32012+40%1992
BushtitAegithalidae32025-47%1993
KilldeerCharadriidae32005+0%1992
Rock WrenTroglodytidae32025+25%1997
Barn SwallowHirundinidae32017+25%2006
Spotted TowheePasserellidae32025n/an/a

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