WhenToBird

Birding spot · Middlesex County, Massachusetts

Birding at Arlington Reservoir: What You'll See Each Week

In November, the birds most often reported at Arlington Reservoir are Mallard (97%), Canada Goose (93%), and Green-winged Teal (84%). It is busiest in fall, when 69 species turn up on at least 1 in 20 checklists, and species counts peak in mid May (73 species). 179 species have been reported here across 6,020 complete checklists from 729 birders.

Species by week

020406080Jan 1-7: 37 species on 5%+ of 91 checklistsJan 8-14: 37 species on 5%+ of 58 checklistsJan 15-21: 38 species on 5%+ of 55 checklistsJan 22-31: 35 species on 5%+ of 67 checklistsFeb 1-7: 36 species on 5%+ of 44 checklistsFeb 8-14: 36 species on 5%+ of 57 checklistsFeb 15-21: 42 species on 5%+ of 103 checklistsFeb 22-28: 38 species on 5%+ of 101 checklistsMar 1-7: 41 species on 5%+ of 78 checklistsMar 8-14: 39 species on 5%+ of 145 checklistsMar 15-21: 42 species on 5%+ of 125 checklistsMar 22-31: 47 species on 5%+ of 222 checklistsApr 1-7: 48 species on 5%+ of 176 checklistsApr 8-14: 55 species on 5%+ of 236 checklistsApr 15-21: 54 species on 5%+ of 240 checklistsApr 22-30: 56 species on 5%+ of 346 checklistsMay 1-7: 64 species on 5%+ of 260 checklistsMay 8-14: 63 species on 5%+ of 206 checklistsMay 15-21: 73 species on 5%+ of 169 checklistsMay 22-31: 54 species on 5%+ of 96 checklistsJun 1-7: 46 species on 5%+ of 54 checklistsJun 8-14: 43 species on 5%+ of 47 checklistsJun 15-21: 45 species on 5%+ of 50 checklistsJun 22-30: 38 species on 5%+ of 41 checklistsJul 1-7: 38 species on 5%+ of 30 checklistsJul 8-14: 37 species on 5%+ of 29 checklistsJul 15-21: 45 species on 5%+ of 29 checklistsJul 22-31: 48 species on 5%+ of 36 checklistsAug 1-7: 43 species on 5%+ of 30 checklistsAug 8-14: 39 species on 5%+ of 30 checklistsAug 15-21: 41 species on 5%+ of 31 checklistsAug 22-31: 46 species on 5%+ of 50 checklistsSep 1-7: 54 species on 5%+ of 87 checklistsSep 8-14: 56 species on 5%+ of 133 checklistsSep 15-21: 49 species on 5%+ of 162 checklistsSep 22-30: 57 species on 5%+ of 227 checklistsOct 1-7: 59 species on 5%+ of 158 checklistsOct 8-14: 68 species on 5%+ of 240 checklistsOct 15-21: 68 species on 5%+ of 255 checklistsOct 22-31: 59 species on 5%+ of 250 checklistsNov 1-7: 58 species on 5%+ of 287 checklistsNov 8-14: 51 species on 5%+ of 239 checklistsNov 15-21: 47 species on 5%+ of 136 checklistsNov 22-30: 46 species on 5%+ of 209 checklistsDec 1-7: 44 species on 5%+ of 96 checklistsDec 8-14: 42 species on 5%+ of 73 checklistsDec 15-21: 35 species on 5%+ of 57 checklistsDec 22-31: 40 species on 5%+ of 79 checklistsJanFebMarAprMayJunJulAugSepOctNovDec
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. 1Mallard97%
  2. 2Canada Goose93%
  3. 3Green-winged Teal84%
  4. 4Mute Swan83%
  5. 5Hooded Merganser71%
  6. 6Blue Jay61%
  7. 7Great Blue Heron57%
  8. 8Bufflehead57%
  9. 9Ruddy Duck57%
  10. 10Song Sparrow54%
  11. 11American Robin53%
  12. 12American Black Duck53%
  13. 13Downy Woodpecker42%
  14. 14Ring-necked Duck40%
  15. 15Dark-eyed Junco40%

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

Winter 40 species

  1. Mallard92%
  2. Canada Goose77%
  3. Mute Swan64%
  4. American Black Duck59%
  5. Ring-billed Gull56%

Spring 65 species

  1. Mallard96%
  2. Red-winged Blackbird89%
  3. American Robin87%
  4. Killdeer82%
  5. Common Grackle81%

Summer 46 species

  1. Mallard87%
  2. American Robin79%
  3. Canada Goose72%
  4. House Sparrow70%
  5. Song Sparrow68%

Fall 69 species

  1. Mallard97%
  2. Mute Swan77%
  3. Green-winged Teal73%
  4. Blue Jay73%
  5. Great Blue Heron72%

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.