BirdAnalyst
BBS Route · Texas · BCR 37

Stowell Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 120 species recorded across 52 survey years, still active.

120Species 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 →
52Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1968–2025Span
8Observers

Bird Species Found on Texas Stowell

Top 40 of 120 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
Common GrackleIcteridae193202543×1975
Western Cattle-EgretArdeidae1712025-14%1971
Snowy EgretArdeidae100202515×1975
Great-tailed GrackleIcteridae86202569×1975
Northern MockingbirdMimidae612025-15%1971
Great EgretArdeidae582025+706%1972
Eastern MeadowlarkIcteridae512025-79%1971
Red-winged BlackbirdIcteridae472025-76%1971
Little Blue HeronArdeidae46202514×1985
Mourning DoveColumbidae442025+138%1971
Laughing GullLaridae292025+858%1980
WilletScolopacidae22202322×2021
Northern CardinalCardinalidae202025+171%1971
KilldeerCharadriidae192025+580%1973
Northern BobwhiteOdontophoridae162025-78%1971
European StarlingSturnidae152025-47%1971
Purple MartinHirundinidae132025-76%1971
Barn SwallowHirundinidae132025+367%1988
White-faced IbisThreskiornithidae132025-92%1982
Black-bellied Whistling-DuckAnatidae112025-69%2017
White-winged DoveColumbidae11202512×2007
Brown PelicanPelecanidae112023+175%2021
Blue JayCorvidae102025-50%1971
DickcisselCardinalidae102025-67%1971
Fulvous Whistling-DuckAnatidae102021+94%1992
Eurasian Collared-DoveColumbidae92025-20%2002
Green HeronArdeidae82025+100%1971
House SparrowPasseridae82025-90%1971
Yellow-crowned Night HeronArdeidae82023+150%1993
Eastern KingbirdTyrannidae62022-81%1971
Brown-headed CowbirdIcteridae62025-62%1971
Forster's TernLaridae62023-41%1980
Red-bellied WoodpeckerPicidae62025+33%1975
Gray CatbirdMimidae62009+500%1983
Black VultureCathartidae62025+375%1994
Common GallinuleRallidae52025+0%1972
Painted BuntingCardinalidae52025-13%1993
Cliff SwallowHirundinidae52025+181%2017
Mottled DuckAnatidae42025-73%1971
Loggerhead ShrikeLaniidae42025-70%1971

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14. A route is a sample, not a census.