WhenToBird

Birding spot · Skagit County, Washington

Birding at Skagit-Snoqualmie Wildlife Area Complex (Hall Slough): What You'll See Each Week

In November, the birds most often reported at Skagit-Snoqualmie Wildlife Area Complex (Hall Slough) are Song Sparrow (64%), Bald Eagle (58%), and Snow Goose (58%). It is busiest in fall, when 59 species turn up on at least 1 in 20 checklists, and species counts peak in late September (67 species). 117 species have been reported here across 836 complete checklists from 280 birders.

Species by week

020406080Jan 1-7: 35 species on 5%+ of 13 checklistsJan 8-14: 39 species on 5%+ of 15 checklistsJan 15-21: 38 species on 5%+ of 17 checklistsJan 22-31: 38 species on 5%+ of 20 checklistsFeb 1-7: 30 species on 5%+ of 25 checklistsFeb 8-14: 46 species on 5%+ of 16 checklistsFeb 15-21: 39 species on 5%+ of 20 checklistsFeb 22-28: 37 species on 5%+ of 17 checklistsMar 1-7: 44 species on 5%+ of 20 checklistsMar 8-14: 44 species on 5%+ of 17 checklistsMar 15-21: 27 species on 5%+ of 10 checklistsMar 22-31: 38 species on 5%+ of 10 checklistsApr 1-7: low data (9 checklists)Apr 8-14: 33 species on 5%+ of 12 checklistsApr 15-21: low data (6 checklists)Apr 22-30: 44 species on 5%+ of 21 checklistsMay 1-7: 61 species on 5%+ of 19 checklistsMay 8-14: 40 species on 5%+ of 18 checklistsMay 15-21: 37 species on 5%+ of 28 checklistsMay 22-31: 38 species on 5%+ of 41 checklistsJun 1-7: 41 species on 5%+ of 17 checklistsJun 8-14: low data (5 checklists)Jun 15-21: low data (7 checklists)Jun 22-30: low data (9 checklists)Jul 1-7: low data (9 checklists)Jul 8-14: low data (4 checklists)Jul 15-21: 39 species on 5%+ of 13 checklistsJul 22-31: 34 species on 5%+ of 24 checklistsAug 1-7: 31 species on 5%+ of 23 checklistsAug 8-14: 56 species on 5%+ of 20 checklistsAug 15-21: 38 species on 5%+ of 24 checklistsAug 22-31: 47 species on 5%+ of 37 checklistsSep 1-7: 39 species on 5%+ of 22 checklistsSep 8-14: 51 species on 5%+ of 15 checklistsSep 15-21: 48 species on 5%+ of 30 checklistsSep 22-30: 67 species on 5%+ of 36 checklistsOct 1-7: 59 species on 5%+ of 34 checklistsOct 8-14: 56 species on 5%+ of 37 checklistsOct 15-21: 54 species on 5%+ of 12 checklistsOct 22-31: 56 species on 5%+ of 18 checklistsNov 1-7: 41 species on 5%+ of 15 checklistsNov 8-14: 51 species on 5%+ of 15 checklistsNov 15-21: low data (9 checklists)Nov 22-30: 50 species on 5%+ of 11 checklistsDec 1-7: 39 species on 5%+ of 12 checklistsDec 8-14: low data (4 checklists)Dec 15-21: low data (3 checklists)Dec 22-31: 35 species on 5%+ of 17 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. 1Song Sparrow64%
  2. 2Bald Eagle58%
  3. 3Snow Goose58%
  4. 4Mallard56%
  5. 5Dunlin54%
  6. 6Northern Harrier48%
  7. 7Great Blue Heron46%
  8. 8Trumpeter Swan46%
  9. 9Glaucous-winged Gull38%
  10. 10Northern Pintail38%
  11. 11American Wigeon34%
  12. 12Spotted Towhee32%
  13. 13Black-bellied Plover28%
  14. 14Common Raven28%
  15. 15Northern Shrike28%

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 35 species

  1. Bald Eagle73%
  2. Mallard61%
  3. Trumpeter Swan60%
  4. Dunlin56%
  5. Song Sparrow56%

Spring 44 species

  1. Song Sparrow67%
  2. Mallard62%
  3. Savannah Sparrow62%
  4. Bald Eagle60%
  5. American Robin51%

Summer 43 species

  1. Barn Swallow73%
  2. Ring-billed Gull68%
  3. Great Blue Heron57%
  4. Savannah Sparrow50%
  5. Song Sparrow50%

Fall 59 species

  1. Great Blue Heron66%
  2. Song Sparrow64%
  3. Ring-billed Gull58%
  4. American Wigeon54%
  5. Northern Pintail52%

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.