WhenToBird

Birding spot · King County, Washington

Birding at Foster Island (Wash. Park): What You'll See Each Week

In November, the birds most often reported at Foster Island (Wash. Park) are Mallard (95%), Double-crested Cormorant (90%), and Gadwall (90%). It is busiest in spring, when 61 species turn up on at least 1 in 20 checklists, and species counts peak in early December (69 species). 128 species have been reported here across 1,096 complete checklists from 554 birders.

Species by week

020406080Jan 1-7: 50 species on 5%+ of 22 checklistsJan 8-14: 67 species on 5%+ of 18 checklistsJan 15-21: 52 species on 5%+ of 28 checklistsJan 22-31: 58 species on 5%+ of 29 checklistsFeb 1-7: 54 species on 5%+ of 21 checklistsFeb 8-14: 52 species on 5%+ of 21 checklistsFeb 15-21: 56 species on 5%+ of 28 checklistsFeb 22-28: 56 species on 5%+ of 11 checklistsMar 1-7: 51 species on 5%+ of 25 checklistsMar 8-14: 56 species on 5%+ of 18 checklistsMar 15-21: 61 species on 5%+ of 28 checklistsMar 22-31: 51 species on 5%+ of 22 checklistsApr 1-7: 51 species on 5%+ of 21 checklistsApr 8-14: 51 species on 5%+ of 21 checklistsApr 15-21: 56 species on 5%+ of 24 checklistsApr 22-30: 46 species on 5%+ of 21 checklistsMay 1-7: 61 species on 5%+ of 16 checklistsMay 8-14: 54 species on 5%+ of 26 checklistsMay 15-21: 59 species on 5%+ of 17 checklistsMay 22-31: 52 species on 5%+ of 24 checklistsJun 1-7: 49 species on 5%+ of 26 checklistsJun 8-14: 58 species on 5%+ of 17 checklistsJun 15-21: 47 species on 5%+ of 12 checklistsJun 22-30: 49 species on 5%+ of 16 checklistsJul 1-7: 46 species on 5%+ of 11 checklistsJul 8-14: 49 species on 5%+ of 10 checklistsJul 15-21: 50 species on 5%+ of 10 checklistsJul 22-31: 37 species on 5%+ of 21 checklistsAug 1-7: 43 species on 5%+ of 12 checklistsAug 8-14: 49 species on 5%+ of 12 checklistsAug 15-21: 44 species on 5%+ of 15 checklistsAug 22-31: 49 species on 5%+ of 25 checklistsSep 1-7: 51 species on 5%+ of 16 checklistsSep 8-14: 60 species on 5%+ of 15 checklistsSep 15-21: 49 species on 5%+ of 15 checklistsSep 22-30: 44 species on 5%+ of 102 checklistsOct 1-7: 44 species on 5%+ of 101 checklistsOct 8-14: 52 species on 5%+ of 45 checklistsOct 15-21: 51 species on 5%+ of 12 checklistsOct 22-31: 49 species on 5%+ of 22 checklistsNov 1-7: 63 species on 5%+ of 15 checklistsNov 8-14: low data (7 checklists)Nov 15-21: 62 species on 5%+ of 17 checklistsNov 22-30: 54 species on 5%+ of 21 checklistsDec 1-7: 69 species on 5%+ of 16 checklistsDec 8-14: 56 species on 5%+ of 13 checklistsDec 15-21: 60 species on 5%+ of 15 checklistsDec 22-31: 66 species on 5%+ of 36 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. 1Mallard95%
  2. 2Double-crested Cormorant90%
  3. 3Gadwall90%
  4. 4Bufflehead87%
  5. 5American Crow85%
  6. 6American Wigeon83%
  7. 7Black-capped Chickadee83%
  8. 8Wood Duck83%
  9. 9Canada Goose82%
  10. 10American Robin73%
  11. 11Great Blue Heron73%
  12. 12Common Merganser72%
  13. 13American Coot70%
  14. 14Hooded Merganser68%
  15. 15Northern Shoveler68%

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 57 species

  1. Mallard96%
  2. Bufflehead86%
  3. Double-crested Cormorant86%
  4. Gadwall84%
  5. American Crow84%

Spring 61 species

  1. Canada Goose87%
  2. Mallard85%
  3. American Crow82%
  4. Song Sparrow81%
  5. American Robin77%

Summer 50 species

  1. Mallard88%
  2. American Crow84%
  3. Canada Goose84%
  4. Great Blue Heron81%
  5. Black-capped Chickadee78%

Fall 55 species

  1. Wood Duck81%
  2. Great Blue Heron80%
  3. Canada Goose80%
  4. Mallard77%
  5. American Crow75%

Specialties

Birds reported far more often here than across Washington.

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.