Birding spot · Berkshire County, Massachusetts
Birding at Onota Lake Conservation Area: What You'll See Each Week In November, the birds most often reported at Onota Lake Conservation Area are Mallard (93%), Canada Goose (88%), and Hooded Merganser (79%). It is busiest in summer, when 34 species turn up on at least 1 in 20 checklists, and species counts peak in the second week of May (40 species). 116 species have been reported here across 1,285 complete checklists from 168 birders.
Species by week 0 10 20 30 40 Jan 1-7: 18 species on 5%+ of 63 checklists Jan 8-14: 21 species on 5%+ of 36 checklists Jan 15-21: 23 species on 5%+ of 15 checklists Jan 22-31: 14 species on 5%+ of 25 checklists Feb 1-7: 22 species on 5%+ of 17 checklists Feb 8-14: 16 species on 5%+ of 24 checklists Feb 15-21: 16 species on 5%+ of 23 checklists Feb 22-28: 33 species on 5%+ of 35 checklists Mar 1-7: 22 species on 5%+ of 26 checklists Mar 8-14: 23 species on 5%+ of 53 checklists Mar 15-21: 22 species on 5%+ of 46 checklists Mar 22-31: 32 species on 5%+ of 77 checklists Apr 1-7: 38 species on 5%+ of 26 checklists Apr 8-14: 21 species on 5%+ of 21 checklists Apr 15-21: 25 species on 5%+ of 11 checklists Apr 22-30: 32 species on 5%+ of 13 checklists May 1-7: 38 species on 5%+ of 16 checklists May 8-14: 40 species on 5%+ of 13 checklists May 15-21: 38 species on 5%+ of 11 checklists May 22-31: low data (7 checklists) Jun 1-7: low data (4 checklists) Jun 8-14: low data (4 checklists) Jun 15-21: low data (6 checklists) Jun 22-30: low data (9 checklists) Jul 1-7: low data (9 checklists) Jul 8-14: low data (9 checklists) Jul 15-21: 38 species on 5%+ of 14 checklists Jul 22-31: 33 species on 5%+ of 13 checklists Aug 1-7: 40 species on 5%+ of 19 checklists Aug 8-14: 32 species on 5%+ of 11 checklists Aug 15-21: 36 species on 5%+ of 18 checklists Aug 22-31: 39 species on 5%+ of 19 checklists Sep 1-7: 26 species on 5%+ of 19 checklists Sep 8-14: 27 species on 5%+ of 16 checklists Sep 15-21: low data (9 checklists) Sep 22-30: 35 species on 5%+ of 20 checklists Oct 1-7: 34 species on 5%+ of 19 checklists Oct 8-14: 27 species on 5%+ of 26 checklists Oct 15-21: 35 species on 5%+ of 33 checklists Oct 22-31: 33 species on 5%+ of 75 checklists Nov 1-7: 25 species on 5%+ of 102 checklists Nov 8-14: 33 species on 5%+ of 54 checklists Nov 15-21: 25 species on 5%+ of 48 checklists Nov 22-30: 25 species on 5%+ of 56 checklists Dec 1-7: 20 species on 5%+ of 44 checklists Dec 8-14: 23 species on 5%+ of 31 checklists Dec 15-21: 25 species on 5%+ of 15 checklists Dec 22-31: 15 species on 5%+ of 25 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 Mallard 93% 2 Canada Goose 88% 3 Hooded Merganser 79% 4 Ring-billed Gull 73% 5 American Crow 52% 6 Common Merganser 51% 7 American Black Duck 48% 8 Belted Kingfisher 35% 9 Blue Jay 29% 10 Gadwall 28% 11 Great Blue Heron 27% 12 Wood Duck 26% 13 Mute Swan 25% 14 American Herring Gull 17% 15 Bufflehead 17% 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 .
Mallard93%
Canada Goose88%
Hooded Merganser79%
Ring-billed Gull73%
American Crow52%
Common Merganser51%
American Black Duck48%
Belted Kingfisher35%
Blue Jay29%
Gadwall28%
Great Blue Heron27%
Wood Duck26%
Mute Swan25%
American Herring Gull17%
Bufflehead17%