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

Cooper's Hawk In Tamaulipan Brushlands

All regionsTamaulipan BrushlandsGeneralists

Cooper's Hawk in Tamaulipan Brushlands has edged down: down 23% on the route-weighted index since 1993.

-23%Since 1993TrendPercent 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 →
13Routes 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 →
21YearsYears 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 Cooper's Hawk in Tamaulipan Brushlands. See the full index history below.

Cooper's Hawk In Tamaulipan Brushlands Population Forecast

If the recent trend holds, Cooper's Hawk in Tamaulipan Brushlands is projected to rise about 59% by 2029 — from 0.08 in 2024 to a central estimate of 0.13 (95% range 0.00–0.26). A 5-year backtest shows a typical error of ±47.3%, with 100% of held-out values landing inside the 95% band.

+59%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 →
0.13Projected 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 →
0.00–0.2695% 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 →
±47.3%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, Cooper's Hawk in Tamaulipan Brushlands is projected to rise about 59% by 2029 — from 0.08 in 2024 to a central estimate of 0.13 (95% range 0.00–0.26). A 5-year backtest shows a typical error of ±47.3%, with 100% of held-out values landing inside the 95% band.19782029
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 →
20250.130.000.27
20260.130.000.27
20270.130.000.26
20280.130.000.26
20290.130.000.26

Routes In Tamaulipan Brushlands

Routes recording Cooper's 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 PryorTEXAS32010
LaredoTEXAS32017
RachalTEXAS22018
ZapataTEXAS11978
KingsvilleTEXAS11988
Mirando CityTEXAS12018
EncinalTEXAS12004
HondoTEXAS12024
DilleyTEXAS12021
ProgresoTEXAS12008
SejitaTEXAS12022
Pedro CreekTEXAS11998
Millett 2TEXAS12014

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