WhenToBird

Birding spot · New Haven County, Connecticut

Birding at Leetes Island: What You'll See Each Week

In November, the birds most often reported at Leetes Island are American Black Duck (96%), American Crow (65%), and American Herring Gull (65%). It is busiest in spring, when 62 species turn up on at least 1 in 20 checklists, and species counts peak in the second week of May (75 species). 141 species have been reported here across 1,057 complete checklists from 224 birders.

Species by week

020406080Jan 1-7: 45 species on 5%+ of 27 checklistsJan 8-14: 43 species on 5%+ of 17 checklistsJan 15-21: 45 species on 5%+ of 17 checklistsJan 22-31: 41 species on 5%+ of 26 checklistsFeb 1-7: 48 species on 5%+ of 27 checklistsFeb 8-14: 37 species on 5%+ of 28 checklistsFeb 15-21: 43 species on 5%+ of 32 checklistsFeb 22-28: 39 species on 5%+ of 27 checklistsMar 1-7: 49 species on 5%+ of 31 checklistsMar 8-14: 42 species on 5%+ of 52 checklistsMar 15-21: 47 species on 5%+ of 65 checklistsMar 22-31: 56 species on 5%+ of 82 checklistsApr 1-7: 58 species on 5%+ of 49 checklistsApr 8-14: 53 species on 5%+ of 42 checklistsApr 15-21: 59 species on 5%+ of 31 checklistsApr 22-30: 56 species on 5%+ of 27 checklistsMay 1-7: 53 species on 5%+ of 22 checklistsMay 8-14: 75 species on 5%+ of 20 checklistsMay 15-21: 62 species on 5%+ of 13 checklistsMay 22-31: 58 species on 5%+ of 24 checklistsJun 1-7: low data (5 checklists)Jun 8-14: 55 species on 5%+ of 12 checklistsJun 15-21: 57 species on 5%+ of 11 checklistsJun 22-30: 56 species on 5%+ of 12 checklistsJul 1-7: 63 species on 5%+ of 17 checklistsJul 8-14: 59 species on 5%+ of 33 checklistsJul 15-21: 58 species on 5%+ of 32 checklistsJul 22-31: 52 species on 5%+ of 25 checklistsAug 1-7: 50 species on 5%+ of 14 checklistsAug 8-14: 68 species on 5%+ of 20 checklistsAug 15-21: 46 species on 5%+ of 23 checklistsAug 22-31: 43 species on 5%+ of 36 checklistsSep 1-7: 45 species on 5%+ of 13 checklistsSep 8-14: low data (8 checklists)Sep 15-21: low data (8 checklists)Sep 22-30: 35 species on 5%+ of 10 checklistsOct 1-7: low data (8 checklists)Oct 8-14: low data (7 checklists)Oct 15-21: low data (5 checklists)Oct 22-31: 49 species on 5%+ of 15 checklistsNov 1-7: 58 species on 5%+ of 13 checklistsNov 8-14: low data (8 checklists)Nov 15-21: low data (4 checklists)Nov 22-30: 48 species on 5%+ of 24 checklistsDec 1-7: low data (6 checklists)Dec 8-14: low data (9 checklists)Dec 15-21: low data (9 checklists)Dec 22-31: 41 species on 5%+ of 11 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. 1American Black Duck96%
  2. 2American Crow65%
  3. 3American Herring Gull65%
  4. 4Ring-billed Gull61%
  5. 5Greater Yellowlegs59%
  6. 6Song Sparrow55%
  7. 7Green-winged Teal51%
  8. 8Carolina Wren49%
  9. 9Great Blue Heron45%
  10. 10Mallard45%
  11. 11Bufflehead35%
  12. 12Great Egret35%
  13. 13Gadwall29%
  14. 14House Finch29%
  15. 15Black-capped Chickadee27%

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 48 species

  1. American Black Duck90%
  2. Mallard64%
  3. American Herring Gull63%
  4. American Wigeon59%
  5. Bufflehead59%

Spring 62 species

  1. American Black Duck88%
  2. Mallard73%
  3. Canada Goose69%
  4. Green-winged Teal69%
  5. Red-winged Blackbird63%

Summer 56 species

  1. Double-crested Cormorant95%
  2. Great Egret90%
  3. Snowy Egret89%
  4. Osprey70%
  5. American Herring Gull68%

Fall 53 species

  1. American Black Duck73%
  2. American Herring Gull66%
  3. Double-crested Cormorant66%
  4. Great Egret66%
  5. Greater Yellowlegs63%

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.