WhenToBird

Birding spot · Santa Cruz County, California

Birding at Struve Slough: What You'll See Each Week

In November, the birds most often reported at Struve Slough are Northern Shoveler (98%), American Coot (95%), and Ruddy Duck (95%). It is busiest in fall, when 80 species turn up on at least 1 in 20 checklists, and species counts peak in late September (91 species). 171 species have been reported here across 1,197 complete checklists from 409 birders.

Species by week

020406080100Jan 1-7: 73 species on 5%+ of 70 checklistsJan 8-14: 68 species on 5%+ of 50 checklistsJan 15-21: 70 species on 5%+ of 48 checklistsJan 22-31: 68 species on 5%+ of 46 checklistsFeb 1-7: 71 species on 5%+ of 38 checklistsFeb 8-14: 62 species on 5%+ of 24 checklistsFeb 15-21: 62 species on 5%+ of 23 checklistsFeb 22-28: 88 species on 5%+ of 20 checklistsMar 1-7: 67 species on 5%+ of 30 checklistsMar 8-14: 71 species on 5%+ of 26 checklistsMar 15-21: 73 species on 5%+ of 20 checklistsMar 22-31: 73 species on 5%+ of 17 checklistsApr 1-7: 73 species on 5%+ of 10 checklistsApr 8-14: 49 species on 5%+ of 10 checklistsApr 15-21: low data (5 checklists)Apr 22-30: 70 species on 5%+ of 10 checklistsMay 1-7: low data (9 checklists)May 8-14: 65 species on 5%+ of 14 checklistsMay 15-21: 69 species on 5%+ of 12 checklistsMay 22-31: 53 species on 5%+ of 13 checklistsJun 1-7: low data (9 checklists)Jun 8-14: low data (6 checklists)Jun 15-21: low data (8 checklists)Jun 22-30: low data (9 checklists)Jul 1-7: low data (4 checklists)Jul 8-14: low data (5 checklists)Jul 15-21: low data (3 checklists)Jul 22-31: 59 species on 5%+ of 16 checklistsAug 1-7: low data (4 checklists)Aug 8-14: 59 species on 5%+ of 11 checklistsAug 15-21: 57 species on 5%+ of 10 checklistsAug 22-31: 71 species on 5%+ of 18 checklistsSep 1-7: 70 species on 5%+ of 30 checklistsSep 8-14: 73 species on 5%+ of 31 checklistsSep 15-21: 76 species on 5%+ of 62 checklistsSep 22-30: 91 species on 5%+ of 55 checklistsOct 1-7: 72 species on 5%+ of 25 checklistsOct 8-14: 81 species on 5%+ of 78 checklistsOct 15-21: 75 species on 5%+ of 89 checklistsOct 22-31: 76 species on 5%+ of 50 checklistsNov 1-7: 78 species on 5%+ of 28 checklistsNov 8-14: 91 species on 5%+ of 18 checklistsNov 15-21: 81 species on 5%+ of 18 checklistsNov 22-30: 82 species on 5%+ of 34 checklistsDec 1-7: 83 species on 5%+ of 19 checklistsDec 8-14: 71 species on 5%+ of 16 checklistsDec 15-21: 84 species on 5%+ of 17 checklistsDec 22-31: 66 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. 1Northern Shoveler98%
  2. 2American Coot95%
  3. 3Ruddy Duck95%
  4. 4Great Blue Heron85%
  5. 5Yellow-rumped Warbler85%
  6. 6Mallard83%
  7. 7Great Egret79%
  8. 8Pied-billed Grebe73%
  9. 9Black Phoebe71%
  10. 10Cinnamon Teal70%
  11. 11California Towhee69%
  12. 12Rock Pigeon65%
  13. 13American Crow62%
  14. 14Canada Goose62%
  15. 15California Scrub-Jay59%

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 72 species

  1. Northern Shoveler94%
  2. American Coot94%
  3. Ruddy Duck93%
  4. Mallard81%
  5. Black Phoebe78%

Spring 72 species

  1. Pied-billed Grebe89%
  2. Double-crested Cormorant87%
  3. Mallard86%
  4. Song Sparrow84%
  5. Ruddy Duck82%

Summer 58 species

  1. Double-crested Cormorant90%
  2. Pied-billed Grebe90%
  3. California Towhee82%
  4. Mallard76%
  5. Rock Pigeon75%

Fall 80 species

  1. Mallard87%
  2. Great Blue Heron82%
  3. American Coot80%
  4. Northern Shoveler78%
  5. Great Egret76%

Specialties

Birds reported far more often here than across California.

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.