BirdAnalyst
Species · BCR 36 · BBS 2025 Release · 1966–2024

Red-winged Blackbird In Tamaulipan Brushlands

All regionsTamaulipan BrushlandsGeneralists

Red-winged Blackbird in Tamaulipan Brushlands has fallen sharply: down 55% on the route-weighted index since 1969.

-55%Since 1969
28Routes In Region
57Years

Notable Signals

long arc declinecomputed index

Red-winged Blackbird has fallen sharply in Tamaulipan Brushlands: down 55% on the route-weighted index since 1969.

Forecast

If the recent trend holds, Red-winged Blackbird in Tamaulipan Brushlands is projected to rise about 72% by 2029 — from 42 in 2024 to a central estimate of 73 (95% range 0.00–200). A 5-year backtest shows a typical error of ±116.5%, with 100% of held-out values landing inside the 95% band.

+72%Change by 2029
73Projected 2029 index
0.00–20095% range
±116.5%Backtest error
19672029
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected index95% low95% high
2025740.00202
2026740.00201
2027730.00201
2028730.00201
2029730.00200

Routes In Tamaulipan Brushlands

Routes recording Red-winged Blackbird in Tamaulipan Brushlands.
ProgresoTEXAS6382011
HeidelbergTEXAS1632024
HondoTEXAS1222024
RaymondvilleTEXAS902024
La PryorTEXAS682017
George WestTEXAS482024
KingsvilleTEXAS462024
LaredoTEXAS252023
Agua NuevaTEXAS222023
Catarina 2TEXAS212017
CatarinaTEXAS202010
EncinalTEXAS162010
SejitaTEXAS132023
MillettTEXAS122012
DilleyTEXAS102024
Mirando CityTEXAS92024
Encinal 2TEXAS92024
GuerraTEXAS72023
ZapataTEXAS51987
Millett 2TEXAS52024
RachalTEXAS32023
RandadoTEXAS32024
Catarina 3TEXAS32024
Pedro CreekTEXAS32010
San YgnacioTEXAS21985

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.