Guild · New Hampshire · BBS 2025 Release · 1966–2024
Generalists In New Hampshire
53 species in this guild. As a group they are -40% since 1968.
Guild Signals
No notable trend signals for generalists in New Hampshire. See the full index history below.
Forecast
If the recent trend holds, Generalists in New Hampshire is projected to stay roughly flat through 2029, near 3.8 (95% range 2.9–4.6). A 5-year backtest shows a typical error of ±6.6%, with 100% of held-out values landing inside the 95% band.
-6%Change by 2029
3.8Projected 2029 index
2.9–4.695% range
±6.6%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 4.0 | 3.2 | 4.8 |
| 2026 | 3.9 | 3.1 | 4.8 |
| 2027 | 3.9 | 3.1 | 4.7 |
| 2028 | 3.8 | 3.0 | 4.7 |
| 2029 | 3.8 | 2.9 | 4.6 |
Member Species In New Hampshire
| Eastern Towhee | Passerellidae | -97% |
| Brown Thrasher | Mimidae | -91% |
| Field Sparrow | Passerellidae | -88% |
| Ruffed Grouse | Phasianidae | -88% |
| European Starling | Sturnidae | -82% |
| Evening Grosbeak | Fringillidae | -79% |
| White-throated Sparrow | Passerellidae | -79% |
| Pine Siskin | Fringillidae | -76% |
| Lincoln's Sparrow | Passerellidae | -75% |
| Black-billed Cuckoo | Cuculidae | -73% |
| Rusty Blackbird | Icteridae | -69% |
| Baltimore Oriole | Icteridae | -67% |
| Purple Finch | Fringillidae | -65% |
| Brown-headed Cowbird | Icteridae | -62% |
| Rose-breasted Grosbeak | Cardinalidae | -54% |
| American Kestrel | Falconidae | -53% |
| Common Grackle | Icteridae | -52% |
| Red-winged Blackbird | Icteridae | -52% |
| Blue Jay | Corvidae | -48% |
| House Sparrow | Passeridae | -39% |
| Rock Pigeon | Columbidae | -39% |
| Swamp Sparrow | Passerellidae | -19% |
| Belted Kingfisher | Alcedinidae | -11% |
| Great Horned Owl | Strigidae | -9% |
| Sharp-shinned Hawk | Accipitridae | -4% |
| Gray Catbird | Mimidae | -3% |
| Scarlet Tanager | Cardinalidae | -2% |
| Song Sparrow | Passerellidae | +2% |
| Red-shouldered Hawk | Accipitridae | +13% |
| American Goldfinch | Fringillidae | +13% |
| Cooper's Hawk | Accipitridae | +23% |
| Orchard Oriole | Icteridae | +36% |
| Cedar Waxwing | Bombycillidae | +43% |
| Canada Jay | Corvidae | +58% |
| American Crow | Corvidae | +65% |
| Bald Eagle | Accipitridae | +66% |
| Chipping Sparrow | Passerellidae | +88% |
| Broad-winged Hawk | Accipitridae | +106% |
| Ruby-throated Hummingbird | Trochilidae | +119% |
| Fish Crow | Corvidae | +131% |
| Yellow-billed Cuckoo | Cuculidae | +134% |
| Red Crossbill | Fringillidae | +146% |
| Osprey | Pandionidae | +147% |
| Indigo Bunting | Cardinalidae | +192% |
| Mourning Dove | Columbidae | +304% |
| Barred Owl | Strigidae | +363% |
| Red-tailed Hawk | Accipitridae | +459% |
| Turkey Vulture | Cathartidae | +625% |
| House Finch | Fringillidae | +681% |
| Northern Mockingbird | Mimidae | +856% |
| Common Raven | Corvidae | 11× |
| Wild Turkey | Phasianidae | 41× |
| Northern Cardinal | Cardinalidae | 178× |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.