BirdAnalyst
Species · BCR 36 · BBS 2026 Release · 1966–2025

Blue-winged Teal In Tamaulipan Brushlands

All regionsTamaulipan BrushlandsWaterfowl

Blue-winged Teal in Tamaulipan Brushlands has edged up: up 21% on the route-weighted index since 1992.

+21%Since 1992TrendPercent 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 →
9Routes In RegionSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
12YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable SignalsNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

No notable trend signals for Blue-winged Teal in Tamaulipan Brushlands. See the full index history below.

Routes In Tamaulipan Brushlands

Routes recording Blue-winged Teal in Tamaulipan Brushlands.
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 →
KingsvilleTEXAS22010
CatarinaTEXAS22009
Encinal 2TEXAS22015
HeidelbergTEXAS22021
EncinalTEXAS11970
HondoTEXAS12021
RaymondvilleTEXAS12025
ProgresoTEXAS12006
SejitaTEXAS12008

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.