BirdAnalyst
BBS Route · Texas · BCR 20

Rockspring Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 76 species recorded across 22 survey years, still active.

76Species 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 →
22Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1994–2025Span
5Observers

Bird Species Found on Texas Rockspring

Top 40 of 76 species by most recent count. Each links to its species trend.

Species recorded on the Rockspring 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 CardinalCardinalidae662025+19%1996
Bell's VireoVireonidae562025+32%1996
Bewick's WrenTroglodytidae442025+21%1996
Turkey VultureCathartidae402025+72%1996
Mourning DoveColumbidae242025+34%1996
Painted BuntingCardinalidae222025-44%1996
Blue-gray GnatcatcherPolioptilidae202025+278%1996
Lark SparrowPasserellidae182025-29%1996
Black-crested TitmouseParidae162025-4%1996
Black-throated SparrowPasserellidae142025-46%1996
Cliff SwallowHirundinidae142023-36%1996
Common RavenCorvidae132025+388%1999
House FinchFringillidae122025+144%1996
Field SparrowPasserellidae122025-48%1996
Yellow-breasted ChatIcteriidae112025+7%1996
Northern MockingbirdMimidae92025-25%1996
Ash-throated FlycatcherTyrannidae82025-43%1996
Brown-headed CowbirdIcteridae82025-54%1996
Barn SwallowHirundinidae82025+63%1997
Vermilion FlycatcherTyrannidae62025-57%1996
Summer TanagerCardinalidae62025-39%1996
Cave SwallowHirundinidae62000n/an/a
Blue GrosbeakCardinalidae52025-15%1996
DickcisselCardinalidae52001+25%1997
White-winged DoveColumbidae52025+280%2016
Yellow-billed CuckooCuculidae42025+27%1996
Black VultureCathartidae42025-40%2016
Lesser GoldfinchFringillidae32025-79%1997
Chipping SparrowPasserellidae32025-67%1996
Scissor-tailed FlycatcherTyrannidae32025-36%1997
Yellow-throated VireoVireonidae32025+433%2000
Inca DoveColumbidae32005+100%2000
Great Horned OwlStrigidae32005+100%2000
Chihuahuan RavenCorvidae32016+200%1997
White-eyed VireoVireonidae32025+220%2000
Eurasian Collared-DoveColumbidae32025+150%2008
Woodhouse's Scrub-JayCorvidae22025+40%1996
Cassin's SparrowPasserellidae22025-87%1996
Canyon TowheePasserellidae22025-74%1996
Golden-fronted WoodpeckerPicidae22025-30%1997

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