Species · BCR 35 · BBS 2025 Release · 1966–2024
Black-throated Sparrow In Chihuahuan Desert
Black-throated Sparrow in Chihuahuan Desert has declined: down 43% on the route-weighted index since 1969.
-43%Since 1969
55Routes In Region
57Years
Notable Signals
No notable trend signals for Black-throated Sparrow in Chihuahuan Desert. See the full index history below.
Forecast
If the recent trend holds, Black-throated Sparrow in Chihuahuan Desert is projected to fall about 12% by 2029 — from 26 in 2024 to a central estimate of 23 (95% range 3.9–42). A 5-year backtest shows a typical error of ±19.3%, with 100% of held-out values landing inside the 95% band.
-12%Change by 2029
23Projected 2029 index
3.9–4295% range
±19.3%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 24 | 5.3 | 44 |
| 2026 | 24 | 4.9 | 43 |
| 2027 | 24 | 4.6 | 43 |
| 2028 | 23 | 4.2 | 43 |
| 2029 | 23 | 3.9 | 42 |
Routes In Chihuahuan Desert
| Pumpville | TEXAS | 85 | 2024 |
| Escondida | NEW-MEXICO | 72 | 2024 |
| Casa Piedra | TEXAS | 66 | 2023 |
| Sunshine Wll | NEW-MEXICO | 60 | 2024 |
| Delaware Crk | TEXAS | 57 | 2015 |
| Devils R Cyn | TEXAS | 56 | 2024 |
| Langtry | TEXAS | 54 | 2000 |
| Presidio | TEXAS | 49 | 2023 |
| Gage | NEW-MEXICO | 46 | 2024 |
| Longfellow | TEXAS | 41 | 2024 |
| Coyanda Draw | TEXAS | 41 | 2024 |
| Black Gap | TEXAS | 38 | 2023 |
| Salt Flat | TEXAS | 38 | 2015 |
| Red Rock | NEW-MEXICO | 37 | 2024 |
| Girvin | TEXAS | 36 | 2024 |
| Laborcita | NEW-MEXICO | 35 | 2019 |
| Hatchet Peak | NEW-MEXICO | 34 | 2024 |
| Shafter | TEXAS | 32 | 1985 |
| Laborcita 2 | NEW-MEXICO | 30 | 2024 |
| Hot Springs | TEXAS | 29 | 2024 |
| Jornada | NEW-MEXICO | 28 | 2024 |
| Slaughter | TEXAS | 27 | 2021 |
| San Antonio | NEW-MEXICO | 24 | 1977 |
| Engle | NEW-MEXICO | 24 | 1989 |
| Toyahvale | TEXAS | 24 | 2024 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.