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

Black-chinned Hummingbird In Tamaulipan Brushlands

All regionsTamaulipan BrushlandsGeneralists

Black-chinned Hummingbird in Tamaulipan Brushlands has risen sharply: up 65% on the route-weighted index since 1974.

+65%Since 1974
11Routes In Region
38Years

Notable Signals

long arc increasecomputed index

Black-chinned Hummingbird has risen sharply in Tamaulipan Brushlands: up 65% on the route-weighted index since 1974.

Forecast

If the recent trend holds, Black-chinned Hummingbird in Tamaulipan Brushlands is projected to fall about 15% by 2028 — from 0.35 in 2023 to a central estimate of 0.30 (95% range 0.03–0.57). A 5-year backtest shows a typical error of ±113%, with 100% of held-out values landing inside the 95% band.

-15%Change by 2028
0.30Projected 2028 index
0.03–0.5795% range
±113%Backtest error
19692028
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
20240.290.020.56
20250.290.020.57
20260.300.020.57
20270.300.030.57
20280.300.030.57

Routes In Tamaulipan Brushlands

Routes recording Black-chinned Hummingbird in Tamaulipan Brushlands.
HondoTEXAS42023
CatarinaTEXAS21988
SejitaTEXAS21994
Agua NuevaTEXAS11990
KingsvilleTEXAS12023
George WestTEXAS12009
La PryorTEXAS12010
El IndioTEXAS11994
El SauzTEXAS12008
Catarina 3TEXAS12023
MillettTEXAS12010

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