WhenToBird

Birding spot · Somerset County, New Jersey

Birding at Passaic River: What You'll See Each Week

In November, the birds most often reported at Passaic River are Blue Jay (97%), Red-bellied Woodpecker (88%), and White-throated Sparrow (88%). It is busiest in spring, when 97 species turn up on at least 1 in 20 checklists, and species counts peak in mid May (100 species). 169 species have been reported here across 1,288 complete checklists from 196 birders.

Species by week

0255075100Jan 1-7: 46 species on 5%+ of 14 checklistsJan 8-14: 66 species on 5%+ of 17 checklistsJan 15-21: 52 species on 5%+ of 15 checklistsJan 22-31: 45 species on 5%+ of 26 checklistsFeb 1-7: 53 species on 5%+ of 12 checklistsFeb 8-14: 52 species on 5%+ of 10 checklistsFeb 15-21: 42 species on 5%+ of 25 checklistsFeb 22-28: 43 species on 5%+ of 27 checklistsMar 1-7: 51 species on 5%+ of 35 checklistsMar 8-14: 51 species on 5%+ of 34 checklistsMar 15-21: 52 species on 5%+ of 44 checklistsMar 22-31: 58 species on 5%+ of 46 checklistsApr 1-7: 71 species on 5%+ of 25 checklistsApr 8-14: 69 species on 5%+ of 38 checklistsApr 15-21: 72 species on 5%+ of 37 checklistsApr 22-30: 89 species on 5%+ of 52 checklistsMay 1-7: 96 species on 5%+ of 48 checklistsMay 8-14: 92 species on 5%+ of 43 checklistsMay 15-21: 100 species on 5%+ of 37 checklistsMay 22-31: 77 species on 5%+ of 26 checklistsJun 1-7: 63 species on 5%+ of 10 checklistsJun 8-14: 82 species on 5%+ of 13 checklistsJun 15-21: 66 species on 5%+ of 26 checklistsJun 22-30: 69 species on 5%+ of 15 checklistsJul 1-7: low data (9 checklists)Jul 8-14: low data (9 checklists)Jul 15-21: 81 species on 5%+ of 15 checklistsJul 22-31: 66 species on 5%+ of 12 checklistsAug 1-7: 74 species on 5%+ of 16 checklistsAug 8-14: low data (7 checklists)Aug 15-21: 62 species on 5%+ of 13 checklistsAug 22-31: 91 species on 5%+ of 37 checklistsSep 1-7: 80 species on 5%+ of 38 checklistsSep 8-14: 91 species on 5%+ of 49 checklistsSep 15-21: 69 species on 5%+ of 45 checklistsSep 22-30: 88 species on 5%+ of 56 checklistsOct 1-7: 79 species on 5%+ of 45 checklistsOct 8-14: 80 species on 5%+ of 40 checklistsOct 15-21: 70 species on 5%+ of 49 checklistsOct 22-31: 67 species on 5%+ of 49 checklistsNov 1-7: 61 species on 5%+ of 23 checklistsNov 8-14: 60 species on 5%+ of 11 checklistsNov 15-21: 71 species on 5%+ of 18 checklistsNov 22-30: 57 species on 5%+ of 17 checklistsDec 1-7: 56 species on 5%+ of 14 checklistsDec 8-14: 60 species on 5%+ of 13 checklistsDec 15-21: 64 species on 5%+ of 13 checklistsDec 22-31: 44 species on 5%+ of 15 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. 1Blue Jay97%
  2. 2Red-bellied Woodpecker88%
  3. 3White-throated Sparrow88%
  4. 4American Robin86%
  5. 5Tufted Titmouse78%
  6. 6Song Sparrow75%
  7. 7Northern Cardinal74%
  8. 8American Crow65%
  9. 9Dark-eyed Junco65%
  10. 10American Goldfinch64%
  11. 11Northern Flicker64%
  12. 12Black-capped Chickadee62%
  13. 13White-breasted Nuthatch62%
  14. 14Red-tailed Hawk61%
  15. 15Turkey Vulture59%

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 51 species

  1. Blue Jay77%
  2. White-throated Sparrow75%
  3. Red-bellied Woodpecker70%
  4. Song Sparrow67%
  5. Tufted Titmouse67%

Spring 97 species

  1. American Robin86%
  2. Song Sparrow83%
  3. Blue Jay80%
  4. Red-winged Blackbird79%
  5. Northern Cardinal75%

Summer 77 species

  1. Gray Catbird89%
  2. Song Sparrow77%
  3. American Goldfinch76%
  4. American Robin75%
  5. Northern Cardinal73%

Fall 87 species

  1. Blue Jay96%
  2. Red-bellied Woodpecker88%
  3. Song Sparrow78%
  4. Tufted Titmouse78%
  5. Northern Cardinal74%

Specialties

Birds reported far more often here than across New Jersey.

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.