BirdAnalyst
BBS Route · Texas · BCR 35

Comstock Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 87 species recorded across 46 survey years, still active.

87Species 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 →
46Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1967–2023Span
6Observers

Bird Species Found on Texas Comstock

Top 40 of 87 species by most recent count. Each links to its species trend.

Species recorded on the Comstock 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
Mourning DoveColumbidae792023+18%1969
Northern MockingbirdMimidae592023-46%1969
Cassin's SparrowPasserellidae552023-42%1969
Northern BobwhiteOdontophoridae462023+320%1976
Painted BuntingCardinalidae442023+242%1969
Bell's VireoVireonidae352023+557%1969
Turkey VultureCathartidae312023+81%1969
PyrrhuloxiaCardinalidae302023+119%1969
Bewick's WrenTroglodytidae292023+70%1969
Northern CardinalCardinalidae252023+350%1969
Scaled QuailOdontophoridae222023-70%1969
Ash-throated FlycatcherTyrannidae212023+34%1969
Eurasian Collared-DoveColumbidae212023+660%2003
Black-throated SparrowPasserellidae192023-65%1969
VerdinRemizidae142019+560%1973
Greater RoadrunnerCuculidae112017+733%1972
House SparrowPasseridae112023-19%1969
House FinchFringillidae112023-5%1975
Blue-gray GnatcatcherPolioptilidae102017+200%1979
Black VultureCathartidae102023+283%1995
Golden-fronted WoodpeckerPicidae92023+200%1969
Curve-billed ThrasherMimidae82017+400%1983
Great-tailed GrackleIcteridae72023+38%1972
Blue GrosbeakCardinalidae72023+75%1976
Purple MartinHirundinidae72023+42%1979
Brown-headed CowbirdIcteridae62023-68%1969
Cactus WrenTroglodytidae62023+117%1972
Canyon TowheePasserellidae62023-25%1973
Bronzed CowbirdIcteridae62017+67%2006
Lesser NighthawkCaprimulgidae52023+22%1969
Barn SwallowHirundinidae52023-44%1969
White-winged DoveColumbidae52023+367%1980
Rock PigeonColumbidae52011n/an/a
Rufous-crowned SparrowPasserellidae42023+11%1973
Western KingbirdTyrannidae42023+120%1975
Lark SparrowPasserellidae32022-84%1969
Cliff SwallowHirundinidae32023-59%1969
Yellow-breasted ChatIcteriidae32023+138%1975
PhainopeplaPtiliogonatidae32008+200%1996
Crested CaracaraFalconidae32023+100%2009

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