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BBS Route · Texas · BCR 20

Indian Mtn Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 100 species recorded across 33 survey years, still active.

100Species 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 →
33Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1976–2024Span
5Observers

Bird Species Found on Texas Indian Mtn

Top 40 of 100 species by most recent count. Each links to its species trend.

Species recorded on the Indian Mtn 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
Bewick's WrenTroglodytidae772024+223%1978
Northern CardinalCardinalidae682024+54%1978
Yellow-breasted ChatIcteriidae432024+580%1978
Mourning DoveColumbidae422024+524%1978
Turkey VultureCathartidae352024-10%1978
Cliff SwallowHirundinidae341998+714%1980
White-winged DoveColumbidae292024+408%1978
Black-crested TitmouseParidae282024+8%1978
Bell's VireoVireonidae192024+212%1978
Black-capped VireoVireonidae152024+257%1978
Olive SparrowPasserellidae152024+310%2002
Scott's OrioleIcteridae122024+36%1978
Painted BuntingCardinalidae122024-67%1978
Northern MockingbirdMimidae102024-75%1978
Common RavenCorvidae102024+211%1981
White-eyed VireoVireonidae102024+440%1983
Blue GrosbeakCardinalidae92024+75%1980
Black-and-white WarblerParulidae92024+267%1997
Ash-throated FlycatcherTyrannidae82024+9%1978
Chipping SparrowPasserellidae82024+60%1978
Woodhouse's Scrub-JayCorvidae82024+100%1980
Brown-headed CowbirdIcteridae72024+27%1978
Field SparrowPasserellidae72024-41%1978
Summer TanagerCardinalidae72024+106%1978
Black VultureCathartidae62024+300%1984
Lark SparrowPasserellidae62024-46%1978
Blue-gray GnatcatcherPolioptilidae62024+69%1980
Hutton's VireoVireonidae62024+117%2019
House FinchFringillidae52024+11%1980
Canyon TowheePasserellidae52024-75%1978
Eurasian Collared-DoveColumbidae52023+0%2017
Northern BobwhiteOdontophoridae42024-89%1978
Ladder-backed WoodpeckerPicidae42024+78%1978
Rufous-crowned SparrowPasserellidae42024-47%1978
House SparrowPasseridae41991+67%1978
Yellow-throated WarblerParulidae42024+14%2017
Black-throated SparrowPasserellidae32024-80%1978
Golden-cheeked WarblerParulidae32024+200%1978
Black-chinned HummingbirdTrochilidae32024+25%1984
Hooded OrioleIcteridae32017+25%1987

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