BirdAnalyst
BBS Route · Texas · BCR 21

Arenosa Crk Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 90 species recorded across 50 survey years, still active.

90Species 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 →
50Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1968–2024Span
4Observers

Bird Species Found on Texas Arenosa Crk

Top 40 of 90 species by most recent count. Each links to its species trend.

Species recorded on the Arenosa Crk 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 CardinalCardinalidae1882024+65%1970
Western Cattle-EgretArdeidae1032023+311%1977
Cliff SwallowHirundinidae722024+26%1993
Mourning DoveColumbidae602024+60%1970
Wood StorkCiconiidae482015n/an/a
Northern MockingbirdMimidae472024-11%1970
White-eyed VireoVireonidae28202418×1973
Carolina WrenTroglodytidae252024+480%1973
Tufted TitmouseParidae242024+326%1972
American CrowCorvidae232024+79%1970
Painted BuntingCardinalidae212024+62%1970
Northern BobwhiteOdontophoridae142024-74%1970
Lark SparrowPasserellidae142024+39%1973
Black-necked StiltRecurvirostridae14200214×1993
Eastern BluebirdTurdidae132024-14%1972
Scissor-tailed FlycatcherTyrannidae122024-30%1970
Eastern MeadowlarkIcteridae122024-81%1970
Common GrackleIcteridae122023+121%1978
Carolina ChickadeeParidae112024-18%1970
Yellow-billed CuckooCuculidae112024+53%1971
Turkey VultureCathartidae102024-27%1970
Red-bellied WoodpeckerPicidae82024+67%1972
Golden-fronted WoodpeckerPicidae81970n/an/a
Black VultureCathartidae82024+40%1981
Brown-headed CowbirdIcteridae72024+16%1970
Barred OwlStrigidae72024+125%1979
Common YellowthroatParulidae72000n/an/a
Inca DoveColumbidae62024+0%1975
Bewick's WrenTroglodytidae51992-77%1972
White-breasted NuthatchSittidae52007-17%1970
Great EgretArdeidae52021+40%2000
Great Horned OwlStrigidae52019+200%1992
Eurasian Collared-DoveColumbidae42024+400%2008
White-winged DoveColumbidae42019+300%2014
Crested CaracaraFalconidae32024+100%1981
Loggerhead ShrikeLaniidae32019-44%1972
Summer TanagerCardinalidae32024+20%1973
Purple MartinHirundinidae32023-33%1978
Red-tailed HawkAccipitridae32024+100%1985
Wild TurkeyPhasianidae32021-9%1995

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