BirdAnalyst
BBS Route · Texas · BCR 21

Thornton 3 Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 61 species recorded across 3 survey years, still active.

61Species 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 →
3Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2018–2024Span
2Observers

Bird Species Found on Texas Thornton 3

Top 40 of 61 species by most recent count. Each links to its species trend.

Species recorded on the Thornton 3 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 CardinalCardinalidae842024+163%2018
Painted BuntingCardinalidae382024+19%2018
American CrowCorvidae342024+467%2018
Scissor-tailed FlycatcherTyrannidae322024+100%2018
Northern MockingbirdMimidae272024-21%2018
Carolina WrenTroglodytidae272024+146%2018
Carolina ChickadeeParidae202024+186%2018
Mourning DoveColumbidae162024+7%2018
Turkey VultureCathartidae162024-41%2018
White-eyed VireoVireonidae152024+50%2018
Brown-headed CowbirdIcteridae132024+86%2019
Eastern MeadowlarkIcteridae122024-25%2018
Barn SwallowHirundinidae112024-39%2018
House SparrowPasseridae11202411×2018
Tufted TitmouseParidae102024+100%2018
Cliff SwallowHirundinidae92024-81%2018
Blue JayCorvidae82024+167%2018
Yellow-billed CuckooCuculidae82024+700%2019
DickcisselCardinalidae72024+600%2018
Eastern BluebirdTurdidae72024-42%2018
Red-tailed HawkAccipitridae72024+250%2019
Black VultureCathartidae62024-76%2018
Red-bellied WoodpeckerPicidae62024+0%2018
Indigo BuntingCardinalidae62024n/an/a
Downy WoodpeckerPicidae52024+150%2018
Blue-gray GnatcatcherPolioptilidae52024+150%2018
Red-winged BlackbirdIcteridae52024+400%2019
Chimney SwiftApodidae52024n/an/a
Common YellowthroatParulidae52024n/an/a
Western KingbirdTyrannidae42019+300%2018
European StarlingSturnidae42024+100%2018
Summer TanagerCardinalidae42024+0%2018
Bewick's WrenTroglodytidae42024+0%2018
White-winged DoveColumbidae42024+100%2019
Great Crested FlycatcherTyrannidae42024+100%2019
Crested CaracaraFalconidae32024+200%2018
Eastern PhoebeTyrannidae32024+200%2018
Northern ParulaParulidae32018n/an/a
MallardAnatidae32019n/an/a
KilldeerCharadriidae32019n/an/a

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