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

Common Poorwill In Tamaulipan Brushlands

All regionsTamaulipan BrushlandsAerial insectivores

Common Poorwill in Tamaulipan Brushlands has collapsed: down 89% on the route-weighted index since 1969.

-89%Since 1969
17Routes In Region
49Years

Notable Signals

long arc declinecomputed index

Common Poorwill has collapsed in Tamaulipan Brushlands: down 89% on the route-weighted index since 1969.

Forecast

If the recent trend holds, Common Poorwill in Tamaulipan Brushlands is projected to fall about 100% by 2027 — from 0.10 in 2022 to a central estimate of 0.00 (95% range 0.00–0.77). A 5-year backtest shows a typical error of ±56.1%, with 100% of held-out values landing inside the 95% band.

-100%Change by 2027
0.00Projected 2027 index
0.00–0.7795% range
±56.1%Backtest error
19672027
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
20230.050.000.81
20240.030.000.80
20250.010.000.78
20260.000.000.77
20270.000.000.77

Routes In Tamaulipan Brushlands

Routes recording Common Poorwill in Tamaulipan Brushlands.
RandadoTEXAS41988
Catarina 2TEXAS32017
SejitaTEXAS32013
Agua NuevaTEXAS21975
ZapataTEXAS21968
George WestTEXAS21974
CatarinaTEXAS22010
El SauzTEXAS22013
Encinal 2TEXAS22019
Mirando CityTEXAS12009
EncinalTEXAS12010
San YgnacioTEXAS11982
HondoTEXAS12021
RaymondvilleTEXAS11989
ProgresoTEXAS12008
LaredoTEXAS12002
Millett 2TEXAS12022

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