BirdAnalyst
BBS Route · Texas · BCR 37

Stowell Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 119 species recorded across 51 survey years, still active.

119Species 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 →
51Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1968–2023Span
7Observers

Bird Species Found on Texas Stowell

Top 40 of 119 species by most recent count. Each links to its species trend.

Species recorded on the Stowell 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
Western Cattle-EgretArdeidae942023+11%1971
Great-tailed GrackleIcteridae93202374×1975
Red-winged BlackbirdIcteridae762023-74%1971
Northern MockingbirdMimidae662023-27%1971
Laughing GullLaridae542023+892%1980
Cliff SwallowHirundinidae502023+248%2017
Mourning DoveColumbidae492023+96%1971
Wood StorkCiconiidae392019+105%1972
White-winged DoveColumbidae36202111×2007
Mottled DuckAnatidae222018-70%1971
WilletScolopacidae22202322×2021
Eastern MeadowlarkIcteridae202023-84%1971
Common GrackleIcteridae202022+520%1975
Great EgretArdeidae192023+459%1972
Black-bellied Whistling-DuckAnatidae122023-76%2017
Brown PelicanPelecanidae112023+175%2021
Fulvous Whistling-DuckAnatidae102021+94%1992
DickcisselCardinalidae92013-70%1971
KilldeerCharadriidae92023+280%1973
Little Blue HeronArdeidae92023+620%1985
Snowy EgretArdeidae82023+460%1975
Yellow-crowned Night HeronArdeidae82023+150%1993
Northern BobwhiteOdontophoridae72023-89%1971
Black VultureCathartidae72023+450%1994
Eastern KingbirdTyrannidae62022-81%1971
European StarlingSturnidae62023-66%1971
Northern CardinalCardinalidae62023+93%1971
Forster's TernLaridae62023-41%1980
Turkey VultureCathartidae62023+850%1994
Gray CatbirdMimidae62009+500%1983
Black-necked StiltRecurvirostridae52022+60%1973
American CrowCorvidae52023+67%1974
Chimney SwiftApodidae42010+25%1971
Brown-headed CowbirdIcteridae42023-70%1971
Red-bellied WoodpeckerPicidae42023+0%1975
Barn SwallowHirundinidae42023+300%1988
Least TernLaridae42023+100%1978
Horned LarkAlaudidae41993n/an/a
Crested CaracaraFalconidae42023+100%2008
American BitternArdeidae42017n/an/a

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