BirdAnalyst
BBS Route · Texas · BCR 19

Shields Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 50 species recorded across 3 survey years, no longer active.

50Species 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 →
1999–2001Span
1Observers

Bird Species Found on Texas Shields

Top 40 of 50 species by most recent count. Each links to its species trend.

Species recorded on the Shields 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 MockingbirdMimidae322001-52%1999
Scissor-tailed FlycatcherTyrannidae232001-38%1999
Northern CardinalCardinalidae232001+35%1999
Mourning DoveColumbidae212001-56%1999
Brown-headed CowbirdIcteridae182001+29%1999
Northern BobwhiteOdontophoridae162001-50%1999
Painted BuntingCardinalidae152001-12%1999
Yellow-billed CuckooCuculidae132001-7%1999
Eastern MeadowlarkIcteridae132001-64%1999
Red-winged BlackbirdIcteridae102001-33%1999
Cliff SwallowHirundinidae102001+400%1999
Black VultureCathartidae102001n/an/a
Turkey VultureCathartidae92001+350%1999
Black-crested TitmouseParidae92001-25%1999
Cassin's SparrowPasserellidae92001+0%2000
Bewick's WrenTroglodytidae72001-59%1999
Golden-fronted WoodpeckerPicidae62001+100%1999
DickcisselCardinalidae62001n/an/a
Wild TurkeyPhasianidae52001+150%1999
Loggerhead ShrikeLaniidae52001+0%1999
KilldeerCharadriidae42001+0%1999
Common NighthawkCaprimulgidae42001-67%1999
Bullock's OrioleIcteridae42001+300%2000
Great-tailed GrackleIcteridae32001-50%1999
House SparrowPasseridae32001-50%1999
Red-tailed HawkAccipitridae32001-25%2000
Swainson's HawkAccipitridae21999n/an/a
Ladder-backed WoodpeckerPicidae22001+100%1999
Chimney SwiftApodidae21999n/an/a
Ash-throated FlycatcherTyrannidae22001+100%1999
Lark SparrowPasserellidae22000+0%1999
Barn SwallowHirundinidae22001-60%1999
Cactus WrenTroglodytidae22001+0%1999
Western KingbirdTyrannidae22001+100%2000
Purple MartinHirundinidae22001+100%2000
Carolina WrenTroglodytidae22000n/an/a
Black-throated SparrowPasserellidae22001n/an/a
White-eyed VireoVireonidae22001n/an/a
Eastern PhoebeTyrannidae12001-80%1999
Common GrackleIcteridae12001+0%1999

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