Guild
Shorebirds
35 species tracked. As a group, shorebirds are -32%Guild trendA mean-index aggregate across the species in this group — the structural direction of the guild, with individual-species noise smoothed out.Full methodology → since 1968.
Guild SignalsNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →
No notable trend signals for shorebirds. See the full index history below.
Shorebirds Population Forecast
If the recent trend holds, Shorebirds as a group is projected to fall about 28% by 2030 — from 0.24 in 2025 to a central estimate of 0.17 (95% range 0.05–0.29). A 5-year backtest shows a typical error of ±19.4%, with 100% of held-out values landing inside the 95% band.
0.17Projected 2030 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
Shorebirds By State
| Guild trendA mean-index aggregate across the species in this group — the structural direction of the guild, with individual-species noise smoothed out.Full methodology → | ||
|---|---|---|
| Maine | -84% | 4 |
| Idaho | -81% | 8 |
| New Hampshire | -78% | 4 |
| Colorado | -65% | 8 |
| Arizona | -61% | 3 |
| California | -59% | 10 |
| Washington | -57% | 7 |
| Oregon | -56% | 8 |
| Texas | -56% | 8 |
| Connecticut | -48% | 3 |
| Vermont | -47% | 4 |
| New Mexico | -45% | 7 |
| Florida | -39% | 6 |
| Massachusetts | -38% | 4 |
| Michigan | -20% | 4 |
| Oklahoma | -17% | 4 |
| Wyoming | -13% | 8 |
| South Dakota | -8% | 8 |
| Alaska | -2% | 24 |
| New York | +2% | 4 |
| Montana | +4% | 8 |
| West Virginia | +4% | 3 |
| Virginia | +8% | 4 |
| Kansas | +10% | 5 |
| Utah | +10% | 9 |
| Nevada | +11% | 8 |
| Delaware | +18% | 3 |
| Wisconsin | +19% | 4 |
| Nebraska | +23% | 7 |
| New Jersey | +31% | 3 |
| Pennsylvania | +32% | 3 |
| Minnesota | +40% | 6 |
| Louisiana | +49% | 3 |
| Maryland | +58% | 4 |
| North Dakota | +98% | 8 |
| Alabama | +115% | 3 |
| Ohio | +200% | 3 |
| Illinois | +283% | 3 |
| Indiana | +499% | 3 |
| North Carolina | +830% | 4 |