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

Swainson's Hawk In Tamaulipan Brushlands

All regionsTamaulipan BrushlandsGeneralists

Swainson's Hawk in Tamaulipan Brushlands has declined: down 41% on the route-weighted index since 1969.

-41%Since 1969
27Routes In Region
57Years

Notable Signals

No notable trend signals for Swainson's Hawk in Tamaulipan Brushlands. See the full index history below.

Forecast

If the recent trend holds, Swainson's Hawk in Tamaulipan Brushlands is projected to stay roughly flat through 2029, near 0.52 (95% range 0.00–2.1). A 5-year backtest shows a typical error of ±30.7%, with 100% of held-out values landing inside the 95% band.

+3%Change by 2029
0.52Projected 2029 index
0.00–2.195% range
±30.7%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
20250.620.002.2
20260.600.002.2
20270.570.002.2
20280.540.002.2
20290.520.002.1

Routes In Tamaulipan Brushlands

Routes recording Swainson's Hawk in Tamaulipan Brushlands.
Mirando CityTEXAS41993
El SauzTEXAS42023
San YgnacioTEXAS31985
CatarinaTEXAS32010
ProgresoTEXAS32009
Pedro CreekTEXAS32005
Millett 2TEXAS32022
La PryorTEXAS22017
RaymondvilleTEXAS22024
Catarina 3TEXAS22024
LaredoTEXAS22021
RachalTEXAS12023
Agua NuevaTEXAS12023
ZapataTEXAS11984
KingsvilleTEXAS12013
RandadoTEXAS12017
EncinalTEXAS12006
George WestTEXAS12023
HondoTEXAS12016
El IndioTEXAS12007
Catarina 2TEXAS12017
GuerraTEXAS12023
Encinal 2TEXAS12024
SejitaTEXAS12024
MillettTEXAS12010

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