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

Common Nighthawk In Tamaulipan Brushlands

All regionsTamaulipan BrushlandsAerial insectivores

Common Nighthawk in Tamaulipan Brushlands has collapsed: down 82% on the route-weighted index since 1969.

-82%Since 1969
28Routes In Region
57Years

Notable Signals

long arc declinecomputed index

Common Nighthawk has collapsed in Tamaulipan Brushlands: down 82% on the route-weighted index since 1969.

Forecast

If the recent trend holds, Common Nighthawk in Tamaulipan Brushlands is projected to fall about 91% by 2029 — from 5.6 in 2024 to a central estimate of 0.49 (95% range 0.00–17). A 5-year backtest shows a typical error of ±45.1%, with 100% of held-out values landing inside the 95% band.

-91%Change by 2029
0.49Projected 2029 index
0.00–1795% range
±45.1%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
20252.20.0019
20261.80.0018
20271.40.0018
20280.930.0017
20290.490.0017

Routes In Tamaulipan Brushlands

Routes recording Common Nighthawk in Tamaulipan Brushlands.
RaymondvilleTEXAS362024
ProgresoTEXAS292011
HeidelbergTEXAS162024
MillettTEXAS92012
KingsvilleTEXAS52024
Cavasara Cr.TEXAS52010
RachalTEXAS42021
Catarina 3TEXAS42024
LaredoTEXAS41998
La PryorTEXAS32017
Catarina 2TEXAS32011
Encinal 2TEXAS32024
EncinalTEXAS22010
San YgnacioTEXAS21971
CatarinaTEXAS22010
GuerraTEXAS22010
Pedro CreekTEXAS21996
Millett 2TEXAS22016
Agua NuevaTEXAS12019
ZapataTEXAS11984
RandadoTEXAS12019
Mirando CityTEXAS12012
George WestTEXAS12024
HondoTEXAS12024
El IndioTEXAS12007

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