BirdAnalyst
BBS Route · Texas · BCR 36

Zapata Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 98 species recorded across 18 survey years, no longer active.

98Species 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 →
18Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1967–1987Span
5Observers

Bird Species Found on Texas Zapata

Top 40 of 98 species by most recent count. Each links to its species trend.

Species recorded on the Zapata 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
House SparrowPasseridae2651984+229%1969
Cave SwallowHirundinidae1941987n/an/a
Northern MockingbirdMimidae841987-27%1969
Mourning DoveColumbidae761987+118%1969
Cactus WrenTroglodytidae531987+174%1969
Turkey VultureCathartidae471987+76%1969
Great-tailed GrackleIcteridae371987-32%1969
Northern BobwhiteOdontophoridae331987-21%1969
Golden-fronted WoodpeckerPicidae321987-70%1969
Northern Rough-winged SwallowHirundinidae311987-55%1978
PyrrhuloxiaCardinalidae301987-82%1969
Scissor-tailed FlycatcherTyrannidae241987-35%1969
Brown-crested FlycatcherTyrannidae201987-32%1969
American CootRallidae181972+800%1968
White-winged DoveColumbidae161987+50%1969
Forster's TernLaridae161979n/an/a
Eastern MeadowlarkIcteridae141987+129%1982
Bronzed CowbirdIcteridae121987+97%1969
Cliff SwallowHirundinidae121987-64%1969
Purple MartinHirundinidae121984+140%1981
Brown-headed CowbirdIcteridae111987-70%1969
Common Ground DoveColumbidae101987+77%1969
Harris's HawkAccipitridae101987-44%1969
Cassin's SparrowPasserellidae101987-77%1969
Yellow-billed CuckooCuculidae101987+7%1970
Black VultureCathartidae71979+300%1971
Greater RoadrunnerCuculidae71987-14%1970
Lark SparrowPasserellidae71987-42%1974
Bewick's WrenTroglodytidae71976-55%1969
Rock PigeonColumbidae71982+600%1981
Great KiskadeeTyrannidae51987+10%1969
Red-winged BlackbirdIcteridae51987-93%1969
Black-throated SparrowPasserellidae51987-97%1969
Black-bellied Whistling-DuckAnatidae51987-42%1982
KilldeerCharadriidae41987-76%1969
Curve-billed ThrasherMimidae41987-85%1969
Crested CaracaraFalconidae41987+100%1977
Orchard OrioleIcteridae41970+0%1968
Bullock's OrioleIcteridae41984+0%1970
Audubon's OrioleIcteridae41987+300%1974

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