Birding spot · Suffolk County, Massachusetts
Birding at Deer Island: What You'll See Each Week In November, the birds most often reported at Deer Island are Common Eider (97%), American Herring Gull (92%), and Red-breasted Merganser (91%). It is busiest in fall, when 64 species turn up on at least 1 in 20 checklists, and species counts peak in mid May (76 species). 171 species have been reported here across 1,473 complete checklists from 567 birders.
Species by week 0 20 40 60 80 Jan 1-7: 45 species on 5%+ of 57 checklists Jan 8-14: 42 species on 5%+ of 59 checklists Jan 15-21: 39 species on 5%+ of 64 checklists Jan 22-31: 38 species on 5%+ of 84 checklists Feb 1-7: 40 species on 5%+ of 57 checklists Feb 8-14: 47 species on 5%+ of 36 checklists Feb 15-21: 42 species on 5%+ of 61 checklists Feb 22-28: 42 species on 5%+ of 41 checklists Mar 1-7: 42 species on 5%+ of 36 checklists Mar 8-14: 41 species on 5%+ of 41 checklists Mar 15-21: 44 species on 5%+ of 33 checklists Mar 22-31: 49 species on 5%+ of 27 checklists Apr 1-7: 71 species on 5%+ of 19 checklists Apr 8-14: 72 species on 5%+ of 20 checklists Apr 15-21: 65 species on 5%+ of 14 checklists Apr 22-30: 57 species on 5%+ of 13 checklists May 1-7: 71 species on 5%+ of 33 checklists May 8-14: 62 species on 5%+ of 22 checklists May 15-21: 76 species on 5%+ of 12 checklists May 22-31: 65 species on 5%+ of 19 checklists Jun 1-7: low data (5 checklists) Jun 8-14: 41 species on 5%+ of 10 checklists Jun 15-21: 42 species on 5%+ of 15 checklists Jun 22-30: 52 species on 5%+ of 18 checklists Jul 1-7: 45 species on 5%+ of 12 checklists Jul 8-14: 51 species on 5%+ of 19 checklists Jul 15-21: 47 species on 5%+ of 18 checklists Jul 22-31: 52 species on 5%+ of 19 checklists Aug 1-7: 38 species on 5%+ of 21 checklists Aug 8-14: 62 species on 5%+ of 17 checklists Aug 15-21: 44 species on 5%+ of 15 checklists Aug 22-31: 58 species on 5%+ of 19 checklists Sep 1-7: 48 species on 5%+ of 22 checklists Sep 8-14: 72 species on 5%+ of 19 checklists Sep 15-21: 58 species on 5%+ of 26 checklists Sep 22-30: 69 species on 5%+ of 29 checklists Oct 1-7: 56 species on 5%+ of 22 checklists Oct 8-14: 67 species on 5%+ of 33 checklists Oct 15-21: 61 species on 5%+ of 25 checklists Oct 22-31: 55 species on 5%+ of 25 checklists Nov 1-7: 50 species on 5%+ of 23 checklists Nov 8-14: 55 species on 5%+ of 28 checklists Nov 15-21: 47 species on 5%+ of 43 checklists Nov 22-30: 48 species on 5%+ of 49 checklists Dec 1-7: 48 species on 5%+ of 36 checklists Dec 8-14: 42 species on 5%+ of 32 checklists Dec 15-21: 43 species on 5%+ of 48 checklists Dec 22-31: 39 species on 5%+ of 77 checklists Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Number of species reported on at least 5% of complete checklists, by week (4 per month). Grey bars: fewer than 10 checklists, not counted. In November: what to expect 1 Common Eider 97% 2 American Herring Gull 92% 3 Red-breasted Merganser 91% 4 Surf Scoter 89% 5 Great Black-backed Gull 87% 6 Common Loon 85% 7 Red-throated Loon 85% 8 Ring-billed Gull 71% 9 Song Sparrow 70% 10 White-winged Scoter 70% 11 Double-crested Cormorant 51% 12 Long-tailed Duck 50% 13 European Starling 46% 14 Northern Cardinal 44% 15 Bufflehead 41% Share of complete checklists at this spot that reported the bird in November. The sparkline is the whole year, with this month highlighted.
Season by season Specialties Birds reported far more often here than across Massachusetts.
Nearby spots Frequency is the share of complete checklists at this location that listed the bird, 2016–2025. Busy places report more of everything, and the weekly chart counts species on at least 5% of checklists so a few stray reports do not inflate it. How to read it .
Common Eider97%
American Herring Gull92%
Red-breasted Merganser91%
Surf Scoter89%
Great Black-backed Gull87%
Common Loon85%
Red-throated Loon85%
Ring-billed Gull71%
Song Sparrow70%
White-winged Scoter70%
Double-crested Cormorant51%
Long-tailed Duck50%
European Starling46%
Northern Cardinal44%
Bufflehead41%