Guild · Michigan · BBS 2025 Release · 1966–2024
Aerial Insectivores In Michigan
19 species in this guild. As a group they are -26% since 1968.
Guild Signals
No notable trend signals for aerial insectivores in Michigan. See the full index history below.
Forecast
If the recent trend holds, Aerial insectivores in Michigan is projected to fall about 13% by 2029 — from 2.1 in 2024 to a central estimate of 1.8 (95% range 1.0–2.6). A 5-year backtest shows a typical error of ±3.4%, with 100% of held-out values landing inside the 95% band.
-13%Change by 2029
1.8Projected 2029 index
1.0–2.695% range
±3.4%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 2.0 | 1.2 | 2.8 |
| 2026 | 1.9 | 1.1 | 2.7 |
| 2027 | 1.9 | 1.1 | 2.7 |
| 2028 | 1.9 | 1.1 | 2.7 |
| 2029 | 1.8 | 1.0 | 2.6 |
Member Species In Michigan
| Purple Martin | Hirundinidae | -92% |
| Cliff Swallow | Hirundinidae | -66% |
| Willow Flycatcher | Tyrannidae | -61% |
| Eastern Kingbird | Tyrannidae | -46% |
| Bank Swallow | Hirundinidae | -44% |
| Barn Swallow | Hirundinidae | -29% |
| Olive-sided Flycatcher | Tyrannidae | -26% |
| Chimney Swift | Apodidae | -22% |
| Common Nighthawk | Caprimulgidae | -13% |
| Great Crested Flycatcher | Tyrannidae | -11% |
| Tree Swallow | Hirundinidae | -6% |
| Least Flycatcher | Tyrannidae | +2% |
| Eastern Phoebe | Tyrannidae | +3% |
| Northern Rough-winged Swallow | Hirundinidae | +19% |
| Yellow-bellied Flycatcher | Tyrannidae | +52% |
| Eastern Whip-poor-will | Caprimulgidae | +130% |
| Eastern Wood-Pewee | Tyrannidae | +148% |
| Alder Flycatcher | Tyrannidae | +224% |
| Acadian Flycatcher | Tyrannidae | +406% |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.