WhenToBird

Birding spot · Montgomery County, Pennsylvania

Birding at Upper Perkiomen Valley: What You'll See Each Week

In November, the birds most often reported at Upper Perkiomen Valley are Canada Goose (93%), Hooded Merganser (90%), and American Black Duck (90%). It is busiest in spring, when 81 species turn up on at least 1 in 20 checklists, and species counts peak in mid May (92 species). 183 species have been reported here across 3,798 complete checklists from 468 birders.

Species by week

020406080100Jan 1-7: 49 species on 5%+ of 115 checklistsJan 8-14: 48 species on 5%+ of 92 checklistsJan 15-21: 50 species on 5%+ of 71 checklistsJan 22-31: 48 species on 5%+ of 101 checklistsFeb 1-7: 48 species on 5%+ of 68 checklistsFeb 8-14: 54 species on 5%+ of 93 checklistsFeb 15-21: 55 species on 5%+ of 96 checklistsFeb 22-28: 56 species on 5%+ of 132 checklistsMar 1-7: 54 species on 5%+ of 107 checklistsMar 8-14: 53 species on 5%+ of 87 checklistsMar 15-21: 56 species on 5%+ of 90 checklistsMar 22-31: 58 species on 5%+ of 121 checklistsApr 1-7: 60 species on 5%+ of 96 checklistsApr 8-14: 63 species on 5%+ of 85 checklistsApr 15-21: 63 species on 5%+ of 86 checklistsApr 22-30: 76 species on 5%+ of 125 checklistsMay 1-7: 84 species on 5%+ of 90 checklistsMay 8-14: 87 species on 5%+ of 82 checklistsMay 15-21: 92 species on 5%+ of 92 checklistsMay 22-31: 69 species on 5%+ of 64 checklistsJun 1-7: 68 species on 5%+ of 45 checklistsJun 8-14: 77 species on 5%+ of 35 checklistsJun 15-21: 73 species on 5%+ of 29 checklistsJun 22-30: 71 species on 5%+ of 35 checklistsJul 1-7: 65 species on 5%+ of 32 checklistsJul 8-14: 65 species on 5%+ of 45 checklistsJul 15-21: 63 species on 5%+ of 53 checklistsJul 22-31: 68 species on 5%+ of 82 checklistsAug 1-7: 60 species on 5%+ of 56 checklistsAug 8-14: 55 species on 5%+ of 64 checklistsAug 15-21: 56 species on 5%+ of 51 checklistsAug 22-31: 58 species on 5%+ of 117 checklistsSep 1-7: 60 species on 5%+ of 95 checklistsSep 8-14: 69 species on 5%+ of 51 checklistsSep 15-21: 68 species on 5%+ of 53 checklistsSep 22-30: 67 species on 5%+ of 89 checklistsOct 1-7: 73 species on 5%+ of 59 checklistsOct 8-14: 63 species on 5%+ of 59 checklistsOct 15-21: 61 species on 5%+ of 72 checklistsOct 22-31: 61 species on 5%+ of 93 checklistsNov 1-7: 56 species on 5%+ of 105 checklistsNov 8-14: 56 species on 5%+ of 101 checklistsNov 15-21: 54 species on 5%+ of 75 checklistsNov 22-30: 55 species on 5%+ of 126 checklistsDec 1-7: 46 species on 5%+ of 65 checklistsDec 8-14: 54 species on 5%+ of 58 checklistsDec 15-21: 53 species on 5%+ of 70 checklistsDec 22-31: 51 species on 5%+ of 90 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. 1Canada Goose93%
  2. 2Hooded Merganser90%
  3. 3American Black Duck90%
  4. 4Mallard89%
  5. 5Gadwall80%
  6. 6Belted Kingfisher76%
  7. 7White-throated Sparrow67%
  8. 8Blue Jay65%
  9. 9Green-winged Teal62%
  10. 10Great Blue Heron57%
  11. 11Song Sparrow57%
  12. 12Common Merganser53%
  13. 13American Wigeon50%
  14. 14Northern Cardinal50%
  15. 15Carolina Wren49%

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. Canada Goose87%
  2. American Black Duck84%
  3. Common Merganser80%
  4. Mallard79%
  5. Hooded Merganser77%

Spring 81 species

  1. Canada Goose89%
  2. American Robin73%
  3. Red-winged Blackbird68%
  4. Tree Swallow65%
  5. Northern Cardinal65%

Summer 71 species

  1. Green Heron82%
  2. Great Blue Heron81%
  3. Gray Catbird74%
  4. Canada Goose74%
  5. Wood Duck73%

Fall 64 species

  1. Canada Goose84%
  2. Mallard82%
  3. Belted Kingfisher76%
  4. Blue Jay71%
  5. Great Blue Heron69%

Specialties

Birds reported far more often here than across Pennsylvania.

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.