BBS Route · Massachusetts · BCR 30
Warren Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 115 species recorded across 41 survey years, no longer active.
115Species Recorded
41Years Surveyed
1968–2009Span
5Observers
Bird Species Found on Massachusetts Warren
Top 40 of 115 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| American Robin | Turdidae | 37 | 2009 | +4% | 1970 | |
| Mourning Dove | Columbidae | 35 | 2009 | +162% | 1970 | |
| Red-winged Blackbird | Icteridae | 27 | 2009 | -20% | 1970 | |
| Gray Catbird | Mimidae | 25 | 2009 | +37% | 1970 | |
| European Starling | Sturnidae | 21 | 2009 | -65% | 1970 | |
| Chipping Sparrow | Passerellidae | 21 | 2009 | -19% | 1970 | |
| Black-capped Chickadee | Paridae | 21 | 2009 | +69% | 1970 | |
| Northern Cardinal | Cardinalidae | 21 | 2009 | 14× | 1972 | |
| Tufted Titmouse | Paridae | 21 | 2009 | 14× | 1973 | |
| House Sparrow | Passeridae | 20 | 2009 | -46% | 1970 | |
| Chimney Swift | Apodidae | 18 | 2009 | -34% | 1970 | |
| Red-eyed Vireo | Vireonidae | 17 | 2009 | -28% | 1970 | |
| Song Sparrow | Passerellidae | 16 | 2009 | -48% | 1970 | |
| Cedar Waxwing | Bombycillidae | 15 | 2009 | -43% | 1970 | |
| Brown-headed Cowbird | Icteridae | 14 | 2009 | +40% | 1970 | |
| Common Yellowthroat | Parulidae | 14 | 2009 | -47% | 1970 | |
| Eastern Phoebe | Tyrannidae | 13 | 2009 | +55% | 1970 | |
| American Goldfinch | Fringillidae | 11 | 2009 | +3% | 1970 | |
| Northern House Wren | Troglodytidae | 10 | 2009 | -8% | 1970 | |
| Blue Jay | Corvidae | 9 | 2009 | -52% | 1970 | |
| American Crow | Corvidae | 9 | 2009 | -4% | 1970 | |
| Ovenbird | Parulidae | 9 | 2009 | +16% | 1970 | |
| American Redstart | Parulidae | 9 | 2009 | +200% | 1970 | |
| White-breasted Nuthatch | Sittidae | 9 | 2009 | +300% | 1971 | |
| Bobolink | Icteridae | 8 | 2009 | +214% | 1970 | |
| House Finch | Fringillidae | 8 | 2009 | +157% | 1979 | |
| Downy Woodpecker | Picidae | 7 | 2009 | +117% | 1970 | |
| Common Grackle | Icteridae | 7 | 2009 | -74% | 1970 | |
| Barn Swallow | Hirundinidae | 7 | 2009 | +15% | 1970 | |
| Wood Thrush | Turdidae | 6 | 2009 | -75% | 1970 | |
| Eastern Kingbird | Tyrannidae | 5 | 2009 | -50% | 1970 | |
| Eastern Towhee | Passerellidae | 5 | 2009 | -83% | 1970 | |
| Warbling Vireo | Vireonidae | 5 | 2009 | +125% | 1971 | |
| Yellow Warbler | Parulidae | 5 | 2009 | +82% | 1970 | |
| Pine Warbler | Parulidae | 5 | 2009 | +280% | 1980 | |
| Turkey Vulture | Cathartidae | 5 | 2009 | +50% | 1992 | |
| Eastern Wood-Pewee | Tyrannidae | 4 | 2009 | +60% | 1970 | |
| Field Sparrow | Passerellidae | 4 | 2009 | -63% | 1970 | |
| Northern Mockingbird | Mimidae | 4 | 2009 | +367% | 1971 | |
| Veery | Turdidae | 4 | 2009 | -50% | 1970 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.