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

Killdeer In Tamaulipan Brushlands

All regionsTamaulipan BrushlandsShorebirds

Killdeer in Tamaulipan Brushlands has fallen sharply: down 68% on the route-weighted index since 1969.

-68%Since 1969
28Routes In Region
57Years

Notable Signals

long arc declinecomputed index

Killdeer has fallen sharply in Tamaulipan Brushlands: down 68% on the route-weighted index since 1969.

Forecast

If the recent trend holds, Killdeer in Tamaulipan Brushlands is projected to fall about 73% by 2029 — from 3.1 in 2024 to a central estimate of 0.84 (95% range 0.00–4.2). A 5-year backtest shows a typical error of ±53.6%, with 100% of held-out values landing inside the 95% band.

-73%Change by 2029
0.84Projected 2029 index
0.00–4.295% range
±53.6%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
20251.20.004.5
20261.10.004.4
20271.00.004.3
20280.930.004.2
20290.840.004.2

Routes In Tamaulipan Brushlands

Routes recording Killdeer in Tamaulipan Brushlands.
RaymondvilleTEXAS82024
Catarina 3TEXAS82024
Mirando CityTEXAS62012
Millett 2TEXAS62024
HondoTEXAS52024
ProgresoTEXAS52011
ZapataTEXAS41987
LaredoTEXAS42023
RandadoTEXAS32024
San YgnacioTEXAS31982
Encinal 2TEXAS32024
HeidelbergTEXAS32024
Cavasara Cr.TEXAS32013
KingsvilleTEXAS22019
EncinalTEXAS22010
CatarinaTEXAS22010
La PryorTEXAS22017
El IndioTEXAS22007
RachalTEXAS12023
Agua NuevaTEXAS12018
George WestTEXAS12024
El SauzTEXAS12023
Catarina 2TEXAS12017
DilleyTEXAS12023
GuerraTEXAS12018

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