WhenToBird

Birding spot · Montgomery County, Pennsylvania

Birding at Green Lane Reservoir (Deep Creek): What You'll See Each Week

In November, the birds most often reported at Green Lane Reservoir (Deep Creek) are Canada Goose (75%), Common Merganser (66%), and Mallard (61%). It is busiest in fall, when 57 species turn up on at least 1 in 20 checklists, and species counts peak in the second week of April (57 species). 133 species have been reported here across 873 complete checklists from 166 birders.

Species by week

0204060Jan 1-7: 44 species on 5%+ of 42 checklistsJan 8-14: 50 species on 5%+ of 71 checklistsJan 15-21: 45 species on 5%+ of 44 checklistsJan 22-31: 42 species on 5%+ of 71 checklistsFeb 1-7: 34 species on 5%+ of 40 checklistsFeb 8-14: 38 species on 5%+ of 74 checklistsFeb 15-21: 32 species on 5%+ of 46 checklistsFeb 22-28: 42 species on 5%+ of 58 checklistsMar 1-7: 29 species on 5%+ of 45 checklistsMar 8-14: 38 species on 5%+ of 39 checklistsMar 15-21: 37 species on 5%+ of 31 checklistsMar 22-31: 49 species on 5%+ of 25 checklistsApr 1-7: 34 species on 5%+ of 24 checklistsApr 8-14: 57 species on 5%+ of 12 checklistsApr 15-21: low data (5 checklists)Apr 22-30: low data (6 checklists)May 1-7: low data (7 checklists)May 8-14: low data (5 checklists)May 15-21: low data (1 checklists)May 22-31: low data (5 checklists)Jun 1-7: low data (0 checklists)Jun 8-14: low data (2 checklists)Jun 15-21: low data (5 checklists)Jun 22-30: low data (3 checklists)Jul 1-7: low data (3 checklists)Jul 8-14: low data (4 checklists)Jul 15-21: low data (1 checklists)Jul 22-31: low data (2 checklists)Aug 1-7: low data (0 checklists)Aug 8-14: low data (4 checklists)Aug 15-21: low data (3 checklists)Aug 22-31: low data (6 checklists)Sep 1-7: low data (5 checklists)Sep 8-14: low data (1 checklists)Sep 15-21: low data (5 checklists)Sep 22-30: low data (8 checklists)Oct 1-7: low data (8 checklists)Oct 8-14: low data (6 checklists)Oct 15-21: low data (4 checklists)Oct 22-31: 51 species on 5%+ of 18 checklistsNov 1-7: low data (6 checklists)Nov 8-14: 49 species on 5%+ of 14 checklistsNov 15-21: 44 species on 5%+ of 12 checklistsNov 22-30: 51 species on 5%+ of 12 checklistsDec 1-7: 48 species on 5%+ of 13 checklistsDec 8-14: 45 species on 5%+ of 15 checklistsDec 15-21: 49 species on 5%+ of 19 checklistsDec 22-31: 47 species on 5%+ of 43 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 Goose75%
  2. 2Common Merganser66%
  3. 3Mallard61%
  4. 4Red-bellied Woodpecker57%
  5. 5Dark-eyed Junco55%
  6. 6Eastern Bluebird52%
  7. 7Double-crested Cormorant43%
  8. 8White-breasted Nuthatch43%
  9. 9American Crow41%
  10. 10Blue Jay41%
  11. 11American Goldfinch36%
  12. 12Carolina Wren34%
  13. 13House Finch34%
  14. 14Turkey Vulture34%
  15. 15Hooded Merganser32%

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. Canada Goose87%
  2. Common Merganser85%
  3. Mallard60%
  4. Hooded Merganser47%
  5. American Crow29%

Spring 49 species

  1. Common Merganser79%
  2. Canada Goose60%
  3. Mallard38%
  4. American Robin36%
  5. Hooded Merganser35%

Summer 54 species

  1. Blue Jay70%
  2. Gray Catbird67%
  3. White-breasted Nuthatch64%
  4. American Robin61%
  5. Eastern Wood-Pewee55%

Fall 57 species

  1. Red-bellied Woodpecker59%
  2. Blue Jay55%
  3. Canada Goose52%
  4. Mallard52%
  5. Double-crested Cormorant49%

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.