WhenToBird

Birding spot · Essex County, Massachusetts

Birding at Castle Neck River Marshes: What You'll See Each Week

In November, the birds most often reported at Castle Neck River Marshes are American Black Duck (78%), American Herring Gull (75%), and American Crow (53%). It is busiest in summer, when 58 species turn up on at least 1 in 20 checklists, and species counts peak in mid May (68 species). 125 species have been reported here across 849 complete checklists from 113 birders.

Species by week

020406080Jan 1-7: 34 species on 5%+ of 11 checklistsJan 8-14: low data (8 checklists)Jan 15-21: low data (7 checklists)Jan 22-31: 31 species on 5%+ of 12 checklistsFeb 1-7: 33 species on 5%+ of 10 checklistsFeb 8-14: low data (6 checklists)Feb 15-21: low data (6 checklists)Feb 22-28: low data (6 checklists)Mar 1-7: 35 species on 5%+ of 13 checklistsMar 8-14: 45 species on 5%+ of 26 checklistsMar 15-21: 43 species on 5%+ of 33 checklistsMar 22-31: 43 species on 5%+ of 112 checklistsApr 1-7: 42 species on 5%+ of 89 checklistsApr 8-14: 49 species on 5%+ of 56 checklistsApr 15-21: 50 species on 5%+ of 51 checklistsApr 22-30: 46 species on 5%+ of 49 checklistsMay 1-7: 64 species on 5%+ of 31 checklistsMay 8-14: 59 species on 5%+ of 26 checklistsMay 15-21: 68 species on 5%+ of 13 checklistsMay 22-31: 62 species on 5%+ of 25 checklistsJun 1-7: 59 species on 5%+ of 15 checklistsJun 8-14: 53 species on 5%+ of 10 checklistsJun 15-21: low data (6 checklists)Jun 22-30: 59 species on 5%+ of 14 checklistsJul 1-7: 58 species on 5%+ of 14 checklistsJul 8-14: 51 species on 5%+ of 11 checklistsJul 15-21: 61 species on 5%+ of 15 checklistsJul 22-31: 67 species on 5%+ of 20 checklistsAug 1-7: low data (8 checklists)Aug 8-14: 50 species on 5%+ of 10 checklistsAug 15-21: low data (7 checklists)Aug 22-31: 48 species on 5%+ of 14 checklistsSep 1-7: 52 species on 5%+ of 17 checklistsSep 8-14: low data (6 checklists)Sep 15-21: low data (8 checklists)Sep 22-30: low data (4 checklists)Oct 1-7: low data (5 checklists)Oct 8-14: low data (5 checklists)Oct 15-21: low data (7 checklists)Oct 22-31: low data (2 checklists)Nov 1-7: 36 species on 5%+ of 10 checklistsNov 8-14: low data (8 checklists)Nov 15-21: low data (6 checklists)Nov 22-30: low data (8 checklists)Dec 1-7: low data (4 checklists)Dec 8-14: low data (5 checklists)Dec 15-21: low data (8 checklists)Dec 22-31: 40 species on 5%+ of 12 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 Duck78%
  2. 2American Herring Gull75%
  3. 3American Crow53%
  4. 4Bufflehead53%
  5. 5Blue Jay50%
  6. 6Northern Mockingbird44%
  7. 7American Robin41%
  8. 8European Starling41%
  9. 9Song Sparrow41%
  10. 10Red-tailed Hawk38%
  11. 11Black-capped Chickadee34%
  12. 12American Goldfinch31%
  13. 13Northern Cardinal31%
  14. 14Tufted Titmouse31%
  15. 15Greater Yellowlegs25%

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 38 species

  1. American Herring Gull81%
  2. American Black Duck73%
  3. Bufflehead61%
  4. Blue Jay56%
  5. European Starling55%

Spring 56 species

  1. Song Sparrow75%
  2. American Robin74%
  3. Red-winged Blackbird73%
  4. Great Egret69%
  5. American Herring Gull65%

Summer 58 species

  1. Great Egret85%
  2. Song Sparrow85%
  3. American Robin78%
  4. Tree Swallow75%
  5. Northern Mockingbird72%

Fall 46 species

  1. American Herring Gull76%
  2. Blue Jay59%
  3. European Starling56%
  4. Great Egret53%
  5. Song Sparrow53%

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.