Guild · Alabama · BBS 2025 Release · 1966–2024
Aerial Insectivores In Alabama
15 species in this guild. As a group they are -2% since 1968.
Guild Signals
No notable trend signals for aerial insectivores in Alabama. See the full index history below.
Forecast
If the recent trend holds, Aerial insectivores in Alabama is projected to fall about 28% by 2029 — from 6.8 in 2024 to a central estimate of 4.9 (95% range 3.5–6.3). A 5-year backtest shows a typical error of ±10.2%, with 80% of held-out values landing inside the 95% band.
-28%Change by 2029
4.9Projected 2029 index
3.5–6.395% range
±10.2%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 5.0 | 3.6 | 6.4 |
| 2026 | 5.0 | 3.6 | 6.4 |
| 2027 | 5.0 | 3.6 | 6.3 |
| 2028 | 4.9 | 3.6 | 6.3 |
| 2029 | 4.9 | 3.5 | 6.3 |
Member Species In Alabama
| Common Nighthawk | Caprimulgidae | -90% |
| Chimney Swift | Apodidae | -70% |
| Chuck-will's-widow | Caprimulgidae | -67% |
| Eastern Whip-poor-will | Caprimulgidae | -67% |
| Eastern Kingbird | Tyrannidae | -51% |
| Purple Martin | Hirundinidae | -51% |
| Gray Kingbird | Tyrannidae | -41% |
| Eastern Wood-Pewee | Tyrannidae | -36% |
| Northern Rough-winged Swallow | Hirundinidae | +39% |
| Great Crested Flycatcher | Tyrannidae | +41% |
| Acadian Flycatcher | Tyrannidae | +128% |
| Barn Swallow | Hirundinidae | +176% |
| Tree Swallow | Hirundinidae | +300% |
| Eastern Phoebe | Tyrannidae | +464% |
| Cliff Swallow | Hirundinidae | 173× |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.