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

Pyrrhuloxia In Tamaulipan Brushlands

All regionsTamaulipan BrushlandsArid-land birds

Pyrrhuloxia in Tamaulipan Brushlands has collapsed: down 85% on the route-weighted index since 1969.

-85%Since 1969
26Routes In Region
57Years

Notable Signals

long arc declinecomputed index

Pyrrhuloxia has collapsed in Tamaulipan Brushlands: down 85% on the route-weighted index since 1969.

Forecast

If the recent trend holds, Pyrrhuloxia in Tamaulipan Brushlands is projected to fall about 100% by 2029 — from 10 in 2024 to a central estimate of 0.00 (95% range 0.00–31). A 5-year backtest shows a typical error of ±135.9%, with 100% of held-out values landing inside the 95% band.

-100%Change by 2029
0.00Projected 2029 index
0.00–3195% range
±135.9%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
20250.000.0031
20260.000.0031
20270.000.0031
20280.000.0031
20290.000.0031

Routes In Tamaulipan Brushlands

Routes recording Pyrrhuloxia in Tamaulipan Brushlands.
San YgnacioTEXAS441985
Catarina 2TEXAS432017
Agua NuevaTEXAS362023
RachalTEXAS312023
ZapataTEXAS301987
Mirando CityTEXAS222024
Cavasara Cr.TEXAS202023
GuerraTEXAS192023
DilleyTEXAS182024
Encinal 2TEXAS162024
LaredoTEXAS152023
RandadoTEXAS142024
El IndioTEXAS132007
MillettTEXAS122012
HondoTEXAS112024
Catarina 3TEXAS112024
SejitaTEXAS102024
George WestTEXAS92024
CatarinaTEXAS82010
El SauzTEXAS82023
Millett 2TEXAS82024
EncinalTEXAS72010
La PryorTEXAS52009
RaymondvilleTEXAS42008
Pedro CreekTEXAS42010

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