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

Red-tailed Hawk In Tamaulipan Brushlands

All regionsTamaulipan BrushlandsGeneralists

Red-tailed Hawk in Tamaulipan Brushlands has edged up: up 11% on the route-weighted index since 1970.

+11%Since 1970TrendPercent 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 →
24Routes 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 →
52YearsYears 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 Red-tailed Hawk in Tamaulipan Brushlands. See the full index history below.

Red-tailed Hawk In Tamaulipan Brushlands Population Forecast

If the recent trend holds, Red-tailed Hawk in Tamaulipan Brushlands is projected to rise about 19% by 2029 — from 0.75 in 2024 to a central estimate of 0.89 (95% range 0.22–1.6). A 5-year backtest shows a typical error of ±43%, with 100% of held-out values landing inside the 95% band.

+19%Change by 2029TrendPercent 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 →
0.89Projected 2029 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.22–1.695% range95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
±43%Backtest errorBacktest errorTypical error when we hold out the most recent years, forecast them, and compare to what actually happened. Lower means a more trustworthy projection.Full methodology →
If the recent trend holds, Red-tailed Hawk in Tamaulipan Brushlands is projected to rise about 19% by 2029 — from 0.75 in 2024 to a central estimate of 0.89 (95% range 0.22–1.6). A 5-year backtest shows a typical error of ±43%, with 100% of held-out values landing inside the 95% band.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 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →95% low95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →95% high95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
20250.850.181.5
20260.860.191.5
20270.870.201.5
20280.880.211.6
20290.890.221.6

Routes In Tamaulipan Brushlands

Routes recording Red-tailed Hawk 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 →
La PryorTEXAS32017
SejitaTEXAS32024
Pedro CreekTEXAS32005
Agua NuevaTEXAS22018
RandadoTEXAS22023
DilleyTEXAS22024
ProgresoTEXAS22008
Millett 2TEXAS22024
RachalTEXAS12023
KingsvilleTEXAS12003
Mirando CityTEXAS12022
EncinalTEXAS12007
George WestTEXAS12023
CatarinaTEXAS11985
HondoTEXAS12024
El IndioTEXAS12001
RaymondvilleTEXAS12023
El SauzTEXAS12010
GuerraTEXAS12009
Encinal 2TEXAS12024
Catarina 3TEXAS12023
LaredoTEXAS12023
MillettTEXAS12006
Cavasara Cr.TEXAS12013

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