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BBS Route · Texas · BCR 20

Harper Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 96 species recorded across 54 survey years, still active.

96Species Recorded
54Years Surveyed
1969–2024Span
3Observers

Bird Species Found on Texas Harper

Top 40 of 96 species by most recent count. Each links to its species trend.

Species recorded on the Harper route.
History
Northern CardinalCardinalidae662024+94%1971
Painted BuntingCardinalidae632024+24%1971
Mourning DoveColumbidae532024-43%1971
Bell's VireoVireonidae452024+3%1971
Turkey VultureCathartidae432024+109%1971
Lark SparrowPasserellidae342024-50%1971
Bewick's WrenTroglodytidae342024-15%1971
Northern MockingbirdMimidae332024-77%1971
Brown-headed CowbirdIcteridae232024+3%1971
Blue-gray GnatcatcherPolioptilidae182024+820%1974
Black-crested TitmouseParidae132024+21%1971
Summer TanagerCardinalidae122024+187%1971
Purple MartinHirundinidae122024+242%1976
Yellow-breasted ChatIcteriidae122024+350%1974
Yellow-billed CuckooCuculidae112024-39%1971
White-winged DoveColumbidae112024+500%2005
Orchard OrioleIcteridae102024-69%1971
Scissor-tailed FlycatcherTyrannidae92024-23%1971
Ash-throated FlycatcherTyrannidae92024+733%1971
Black VultureCathartidae82024+850%1992
Vermilion FlycatcherTyrannidae82024+143%1971
Cliff SwallowHirundinidae82024-91%1971
Golden-fronted WoodpeckerPicidae82024+320%1975
Ladder-backed WoodpeckerPicidae72024+7%1971
House SparrowPasseridae72024-85%1971
Barn SwallowHirundinidae72024+300%1975
Black-throated SparrowPasserellidae62024-16%1971
Crested CaracaraFalconidae62023+0%2017
DickcisselCardinalidae52023+367%1975
Indigo BuntingCardinalidae52024+40%2004
Red-tailed HawkAccipitridae42024+50%1971
Eastern PhoebeTyrannidae42024-50%1971
Canyon WrenTroglodytidae42024+0%1971
PyrrhuloxiaCardinalidae42023+18%1975
VerdinRemizidae42019+50%1983
White-eyed VireoVireonidae42024+400%1998
Common GrackleIcteridae42021+300%1985
Northern BobwhiteOdontophoridae32024-79%1971
Great Horned OwlStrigidae31989-30%1982
House FinchFringillidae32024-44%1971

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