BirdAnalyst
BBS Route · Texas · BCR 21

Dike Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 104 species recorded across 41 survey years, still active.

104Species 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 →
41Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1969–2024Span
9Observers

Bird Species Found on Texas Dike

Top 40 of 104 species by most recent count. Each links to its species trend.

Species recorded on the Dike 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
Northern CardinalCardinalidae692024+111%1972
Northern MockingbirdMimidae422024-17%1972
Eastern MeadowlarkIcteridae312024-65%1972
Mourning DoveColumbidae252024-71%1972
House SparrowPasseridae252024-90%1972
Purple MartinHirundinidae222024+0%1972
DickcisselCardinalidae202024-20%1972
Carolina WrenTroglodytidae162024+429%1972
American CrowCorvidae152024-53%1972
Cliff SwallowHirundinidae152024-26%2006
Blue JayCorvidae132024-7%1972
Barn SwallowHirundinidae122024-89%1972
European StarlingSturnidae102024-75%1972
Red-winged BlackbirdIcteridae102024-64%1972
Scissor-tailed FlycatcherTyrannidae92024-80%1972
Tufted TitmouseParidae92024+480%1972
Indigo BuntingCardinalidae82024-19%1972
Eurasian Collared-DoveColumbidae82024-32%2007
Turkey VultureCathartidae62024-76%1972
Brown-headed CowbirdIcteridae62024-69%1972
Painted BuntingCardinalidae62024+150%1972
Eastern PhoebeTyrannidae62024+200%1984
White-eyed VireoVireonidae52024+167%2005
Carolina ChickadeeParidae52024+150%1972
KilldeerCharadriidae42018-58%1972
Yellow-billed CuckooCuculidae42024-56%1972
Downy WoodpeckerPicidae32024-31%1972
Great Crested FlycatcherTyrannidae32024-7%1972
Common GrackleIcteridae32023-81%1972
Lark SparrowPasserellidae32024-72%1972
Summer TanagerCardinalidae32023+225%1973
Prothonotary WarblerParulidae32024+20%2006
White-winged DoveColumbidae32024-37%2009
House FinchFringillidae32024+200%2007
Great Blue HeronArdeidae22024+67%1972
Great EgretArdeidae22022+180%1972
Great Horned OwlStrigidae22016-55%1972
Red-bellied WoodpeckerPicidae22024-79%1972
Chimney SwiftApodidae22023-84%1972
Eastern Wood-PeweeTyrannidae22023-29%1974

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