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

Bank Swallow In Tamaulipan Brushlands

All regionsTamaulipan BrushlandsAerial insectivores

Bank Swallow in Tamaulipan Brushlands has collapsed: down 86% on the route-weighted index since 1970.

-86%Since 1970
10Routes In Region
27Years

Notable Signals

long arc declinecomputed index

Bank Swallow has collapsed in Tamaulipan Brushlands: down 86% on the route-weighted index since 1970.

Forecast

If the recent trend holds, Bank Swallow in Tamaulipan Brushlands is projected to fall about 100% by 2028 — from 0.23 in 2023 to a central estimate of 0.00 (95% range 0.00–5.7). A 5-year backtest shows a typical error of ±204.1%, with 100% of held-out values landing inside the 95% band.

-100%Change by 2028
0.00Projected 2028 index
0.00–5.795% range
±204.1%Backtest error
19672028
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
20240.000.005.7
20250.000.005.7
20260.000.005.7
20270.000.005.7
20280.000.005.7

Routes In Tamaulipan Brushlands

Routes recording Bank Swallow in Tamaulipan Brushlands.
El IndioTEXAS402001
La PryorTEXAS371974
RaymondvilleTEXAS62009
LaredoTEXAS42023
ProgresoTEXAS22011
RachalTEXAS11989
ZapataTEXAS11982
KingsvilleTEXAS12005
San YgnacioTEXAS11982
HeidelbergTEXAS12022

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