BirdAnalyst
BBS Route · Texas · BCR 19

Grayback Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 88 species recorded across 44 survey years, still active.

88Species 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 →
44Years 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
6Observers

Bird Species Found on Texas Grayback

Top 40 of 88 species by most recent count. Each links to its species trend.

Species recorded on the Grayback 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
Cliff SwallowHirundinidae2992024+356%1973
Northern MockingbirdMimidae162024-74%1970
Northern BobwhiteOdontophoridae152024-91%1970
Painted BuntingCardinalidae152024+860%1974
Ash-throated FlycatcherTyrannidae152024+383%1979
Western MeadowlarkIcteridae142024-90%1970
Bank SwallowHirundinidae141970+180%1969
Cassin's SparrowPasserellidae142024-61%1976
Northern CardinalCardinalidae132024+40%1970
Eastern MeadowlarkIcteridae112024-90%1973
European StarlingSturnidae92011+70%1977
Common NighthawkCaprimulgidae82024-79%1970
DickcisselCardinalidae82024-14%1975
KilldeerCharadriidae72024-46%1970
Mourning DoveColumbidae72024-82%1970
Red-winged BlackbirdIcteridae72024-28%1970
Scissor-tailed FlycatcherTyrannidae62024-53%1970
Lark SparrowPasserellidae62024-73%1973
Common RavenCorvidae51969n/an/a
Common GrackleIcteridae52022-86%1974
Golden-fronted WoodpeckerPicidae52024+114%1978
Great Crested FlycatcherTyrannidae42024+33%1976
Blue GrosbeakCardinalidae42024+150%1976
Chimney SwiftApodidae42005+150%1977
Ladder-backed WoodpeckerPicidae32024+100%1971
House SparrowPasseridae32024-69%1973
Grasshopper SparrowPasserellidae32024+200%1983
Great Horned OwlStrigidae32009+200%1982
Snowy EgretArdeidae31998+200%1993
PyrrhuloxiaCardinalidae32012n/an/a
Wild TurkeyPhasianidae22019+20%1995
Greater RoadrunnerCuculidae22021-29%1970
Yellow-billed CuckooCuculidae22022+50%1971
Western KingbirdTyrannidae22024-9%1975
Brown-headed CowbirdIcteridae22024-25%1970
Great-tailed GrackleIcteridae22024-70%1970
Loggerhead ShrikeLaniidae22022-62%1970
Carolina ChickadeeParidae22011-20%1973
Turkey VultureCathartidae22024+0%1975
Mississippi KiteAccipitridae22024+20%1982

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