WhenToBird

Birding spot · Allegheny County, Pennsylvania

Birding at Deadman Island (historical): What You'll See Each Week

In November, the birds most often reported at Deadman Island (historical) are Double-crested Cormorant (78%), Mallard (73%), and Canada Goose (51%). It is busiest in spring, when 61 species turn up on at least 1 in 20 checklists, and species counts peak in early May (76 species). 132 species have been reported here across 817 complete checklists from 98 birders.

Species by week

020406080Jan 1-7: 41 species on 5%+ of 13 checklistsJan 8-14: 35 species on 5%+ of 15 checklistsJan 15-21: 31 species on 5%+ of 15 checklistsJan 22-31: 41 species on 5%+ of 35 checklistsFeb 1-7: 37 species on 5%+ of 11 checklistsFeb 8-14: low data (5 checklists)Feb 15-21: low data (7 checklists)Feb 22-28: low data (8 checklists)Mar 1-7: low data (8 checklists)Mar 8-14: 42 species on 5%+ of 18 checklistsMar 15-21: 41 species on 5%+ of 10 checklistsMar 22-31: 49 species on 5%+ of 44 checklistsApr 1-7: 52 species on 5%+ of 42 checklistsApr 8-14: 61 species on 5%+ of 56 checklistsApr 15-21: 63 species on 5%+ of 52 checklistsApr 22-30: 54 species on 5%+ of 44 checklistsMay 1-7: 76 species on 5%+ of 16 checklistsMay 8-14: 66 species on 5%+ of 13 checklistsMay 15-21: low data (7 checklists)May 22-31: 61 species on 5%+ of 33 checklistsJun 1-7: 58 species on 5%+ of 15 checklistsJun 8-14: low data (9 checklists)Jun 15-21: low data (6 checklists)Jun 22-30: low data (8 checklists)Jul 1-7: low data (7 checklists)Jul 8-14: low data (5 checklists)Jul 15-21: low data (9 checklists)Jul 22-31: 59 species on 5%+ of 18 checklistsAug 1-7: 53 species on 5%+ of 19 checklistsAug 8-14: 43 species on 5%+ of 22 checklistsAug 15-21: 38 species on 5%+ of 12 checklistsAug 22-31: 54 species on 5%+ of 19 checklistsSep 1-7: 47 species on 5%+ of 18 checklistsSep 8-14: 38 species on 5%+ of 11 checklistsSep 15-21: low data (9 checklists)Sep 22-30: low data (8 checklists)Oct 1-7: 32 species on 5%+ of 11 checklistsOct 8-14: low data (8 checklists)Oct 15-21: 48 species on 5%+ of 14 checklistsOct 22-31: 43 species on 5%+ of 12 checklistsNov 1-7: 46 species on 5%+ of 13 checklistsNov 8-14: 41 species on 5%+ of 10 checklistsNov 15-21: 37 species on 5%+ of 15 checklistsNov 22-30: 27 species on 5%+ of 25 checklistsDec 1-7: 37 species on 5%+ of 13 checklistsDec 8-14: low data (7 checklists)Dec 15-21: 35 species on 5%+ of 13 checklistsDec 22-31: 38 species on 5%+ of 29 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. 1Double-crested Cormorant78%
  2. 2Mallard73%
  3. 3Canada Goose51%
  4. 4Great Blue Heron48%
  5. 5American Crow41%
  6. 6American Herring Gull41%
  7. 7Belted Kingfisher40%
  8. 8Blue Jay40%
  9. 9Song Sparrow38%
  10. 10Carolina Wren35%
  11. 11Northern Cardinal32%
  12. 12Downy Woodpecker25%
  13. 13Red-bellied Woodpecker24%
  14. 14Bald Eagle22%
  15. 15American Goldfinch17%

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 36 species

  1. Mallard63%
  2. American Herring Gull56%
  3. American Crow54%
  4. Canada Goose54%
  5. Bald Eagle43%

Spring 61 species

  1. Canada Goose85%
  2. Song Sparrow83%
  3. Northern Cardinal83%
  4. American Herring Gull77%
  5. Double-crested Cormorant75%

Summer 55 species

  1. American Goldfinch83%
  2. Northern Cardinal71%
  3. Mallard70%
  4. American Robin69%
  5. Song Sparrow65%

Fall 39 species

  1. Double-crested Cormorant80%
  2. Mallard79%
  3. Great Blue Heron66%
  4. American Crow55%
  5. Blue Jay53%

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.