BBS Route · Massachusetts · BCR 30
Chilmark Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 89 species recorded across 7 survey years, no longer active.
89Species Recorded
7Years Surveyed
1969–1983Span
4Observers
Bird Species Found on Massachusetts Chilmark
Top 40 of 89 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| Herring Gull | Laridae | 340 | 1983 | -42% | 1973 | |
| Common Tern | Laridae | 64 | 1983 | +34% | 1973 | |
| Common Grackle | Icteridae | 54 | 1983 | -31% | 1973 | |
| Gray Catbird | Mimidae | 46 | 1983 | +18% | 1973 | |
| European Starling | Sturnidae | 42 | 1983 | -50% | 1973 | |
| American Robin | Turdidae | 42 | 1983 | -40% | 1973 | |
| Song Sparrow | Passerellidae | 33 | 1983 | -11% | 1973 | |
| American Crow | Corvidae | 29 | 1983 | -28% | 1973 | |
| Eastern Towhee | Passerellidae | 28 | 1983 | -31% | 1973 | |
| House Finch | Fringillidae | 24 | 1983 | +175% | 1980 | |
| Great Black-backed Gull | Laridae | 22 | 1983 | +31% | 1973 | |
| Double-crested Cormorant | Phalacrocoracidae | 22 | 1983 | +763% | 1973 | |
| Blue Jay | Corvidae | 20 | 1983 | -16% | 1973 | |
| Barn Swallow | Hirundinidae | 20 | 1983 | +59% | 1973 | |
| House Sparrow | Passeridae | 20 | 1983 | +24% | 1973 | |
| Common Yellowthroat | Parulidae | 18 | 1983 | -14% | 1973 | |
| Northern Bobwhite | Odontophoridae | 17 | 1983 | -14% | 1973 | |
| Black-capped Chickadee | Paridae | 17 | 1983 | +38% | 1973 | |
| Mallard | Anatidae | 15 | 1983 | +43% | 1973 | |
| Mourning Dove | Columbidae | 15 | 1983 | +41% | 1973 | |
| Rock Pigeon | Columbidae | 14 | 1983 | -22% | 1973 | |
| Red-winged Blackbird | Icteridae | 13 | 1983 | -83% | 1973 | |
| Snowy Egret | Ardeidae | 10 | 1983 | -13% | 1971 | |
| Red-eyed Vireo | Vireonidae | 10 | 1983 | -35% | 1973 | |
| American Goldfinch | Fringillidae | 9 | 1983 | +525% | 1973 | |
| Eastern Kingbird | Tyrannidae | 7 | 1983 | +120% | 1973 | |
| Eastern Wood-Pewee | Tyrannidae | 7 | 1983 | +350% | 1971 | |
| American Black Duck | Anatidae | 7 | 1973 | +600% | 1971 | |
| Purple Finch | Fringillidae | 6 | 1981 | +38% | 1973 | |
| Downy Woodpecker | Picidae | 5 | 1983 | +100% | 1975 | |
| Great Crested Flycatcher | Tyrannidae | 5 | 1983 | -14% | 1973 | |
| Northern Cardinal | Cardinalidae | 5 | 1983 | +270% | 1973 | |
| Least Tern | Laridae | 4 | 1983 | -44% | 1973 | |
| Brown-headed Cowbird | Icteridae | 4 | 1983 | -10% | 1973 | |
| Chipping Sparrow | Passerellidae | 4 | 1983 | -10% | 1973 | |
| Cedar Waxwing | Bombycillidae | 4 | 1983 | +300% | 1969 | |
| Ovenbird | Parulidae | 4 | 1983 | -11% | 1973 | |
| White-breasted Nuthatch | Sittidae | 4 | 1983 | -22% | 1971 | |
| Canada Goose | Anatidae | 4 | 1983 | -33% | 1971 | |
| Pine Warbler | Parulidae | 4 | 1983 | +150% | 1975 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.