WhenToBird

Birding spot · Fairfield County, Connecticut

Birding at Stewart B. Mckinney National Wildlife Refuge (Lewis Gut): What You'll See Each Week

In November, the birds most often reported at Stewart B. Mckinney National Wildlife Refuge (Lewis Gut) are Song Sparrow (85%), American Black Duck (69%), and American Herring Gull (57%). It is busiest in spring, when 71 species turn up on at least 1 in 20 checklists, and species counts peak in the second week of May (96 species). 167 species have been reported here across 1,029 complete checklists from 282 birders.

Species by week

020406080100Jan 1-7: 24 species on 5%+ of 29 checklistsJan 8-14: 29 species on 5%+ of 24 checklistsJan 15-21: 35 species on 5%+ of 15 checklistsJan 22-31: 33 species on 5%+ of 10 checklistsFeb 1-7: low data (7 checklists)Feb 8-14: low data (2 checklists)Feb 15-21: low data (6 checklists)Feb 22-28: low data (5 checklists)Mar 1-7: 36 species on 5%+ of 12 checklistsMar 8-14: 42 species on 5%+ of 14 checklistsMar 15-21: 45 species on 5%+ of 18 checklistsMar 22-31: 44 species on 5%+ of 42 checklistsApr 1-7: 51 species on 5%+ of 23 checklistsApr 8-14: 60 species on 5%+ of 32 checklistsApr 15-21: 61 species on 5%+ of 36 checklistsApr 22-30: 52 species on 5%+ of 30 checklistsMay 1-7: 75 species on 5%+ of 49 checklistsMay 8-14: 96 species on 5%+ of 37 checklistsMay 15-21: 76 species on 5%+ of 88 checklistsMay 22-31: 61 species on 5%+ of 83 checklistsJun 1-7: 53 species on 5%+ of 44 checklistsJun 8-14: 47 species on 5%+ of 23 checklistsJun 15-21: 54 species on 5%+ of 21 checklistsJun 22-30: 55 species on 5%+ of 16 checklistsJul 1-7: 55 species on 5%+ of 13 checklistsJul 8-14: low data (9 checklists)Jul 15-21: low data (9 checklists)Jul 22-31: 44 species on 5%+ of 24 checklistsAug 1-7: 56 species on 5%+ of 11 checklistsAug 8-14: 54 species on 5%+ of 12 checklistsAug 15-21: low data (9 checklists)Aug 22-31: 50 species on 5%+ of 16 checklistsSep 1-7: 60 species on 5%+ of 18 checklistsSep 8-14: 57 species on 5%+ of 26 checklistsSep 15-21: 51 species on 5%+ of 22 checklistsSep 22-30: 69 species on 5%+ of 20 checklistsOct 1-7: 56 species on 5%+ of 12 checklistsOct 8-14: 60 species on 5%+ of 29 checklistsOct 15-21: 58 species on 5%+ of 15 checklistsOct 22-31: 60 species on 5%+ of 17 checklistsNov 1-7: 56 species on 5%+ of 15 checklistsNov 8-14: 45 species on 5%+ of 10 checklistsNov 15-21: 47 species on 5%+ of 14 checklistsNov 22-30: 42 species on 5%+ of 15 checklistsDec 1-7: low data (9 checklists)Dec 8-14: 39 species on 5%+ of 13 checklistsDec 15-21: low data (8 checklists)Dec 22-31: 35 species on 5%+ of 17 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. 1Song Sparrow85%
  2. 2American Black Duck69%
  3. 3American Herring Gull57%
  4. 4White-throated Sparrow57%
  5. 5Northern Harrier48%
  6. 6Carolina Wren43%
  7. 7Great Blue Heron39%
  8. 8Downy Woodpecker37%
  9. 9Northern Mockingbird37%
  10. 10Hermit Thrush31%
  11. 11American Robin30%
  12. 12American Tree Sparrow30%
  13. 13Yellow-rumped Warbler30%
  14. 14Black-capped Chickadee28%
  15. 15Dark-eyed Junco26%

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 29 species

  1. Song Sparrow83%
  2. American Herring Gull53%
  3. American Tree Sparrow46%
  4. American Black Duck41%
  5. Northern Mockingbird41%

Spring 71 species

  1. Red-winged Blackbird80%
  2. American Robin77%
  3. Song Sparrow75%
  4. Osprey69%
  5. Tree Swallow63%

Summer 55 species

  1. Osprey89%
  2. Marsh Wren78%
  3. Red-winged Blackbird72%
  4. Tree Swallow70%
  5. Mourning Dove69%

Fall 67 species

  1. Song Sparrow76%
  2. American Herring Gull53%
  3. White-throated Sparrow48%
  4. Great Egret46%
  5. Gray Catbird38%

Specialties

Birds reported far more often here than across Connecticut.

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.