WhenToBird

Birding spot · Santa Clara County, California

Birding at Los Alamitos Percolation Ponds (south): What You'll See Each Week

In November, the birds most often reported at Los Alamitos Percolation Ponds (south) are American Coot (93%), Canada Goose (89%), and Double-crested Cormorant (86%). It is busiest in spring, when 73 species turn up on at least 1 in 20 checklists, and species counts peak in early February (80 species). 143 species have been reported here across 1,022 complete checklists from 336 birders.

Species by week

020406080Jan 1-7: 68 species on 5%+ of 28 checklistsJan 8-14: 62 species on 5%+ of 24 checklistsJan 15-21: 78 species on 5%+ of 18 checklistsJan 22-31: 70 species on 5%+ of 17 checklistsFeb 1-7: 80 species on 5%+ of 19 checklistsFeb 8-14: 66 species on 5%+ of 25 checklistsFeb 15-21: 70 species on 5%+ of 43 checklistsFeb 22-28: 61 species on 5%+ of 23 checklistsMar 1-7: 66 species on 5%+ of 28 checklistsMar 8-14: 72 species on 5%+ of 30 checklistsMar 15-21: 72 species on 5%+ of 32 checklistsMar 22-31: 75 species on 5%+ of 34 checklistsApr 1-7: 60 species on 5%+ of 23 checklistsApr 8-14: 76 species on 5%+ of 10 checklistsApr 15-21: 68 species on 5%+ of 15 checklistsApr 22-30: 75 species on 5%+ of 18 checklistsMay 1-7: 79 species on 5%+ of 18 checklistsMay 8-14: 64 species on 5%+ of 22 checklistsMay 15-21: 74 species on 5%+ of 16 checklistsMay 22-31: 56 species on 5%+ of 22 checklistsJun 1-7: 66 species on 5%+ of 13 checklistsJun 8-14: 69 species on 5%+ of 16 checklistsJun 15-21: 70 species on 5%+ of 20 checklistsJun 22-30: 68 species on 5%+ of 28 checklistsJul 1-7: 71 species on 5%+ of 15 checklistsJul 8-14: 65 species on 5%+ of 43 checklistsJul 15-21: 63 species on 5%+ of 58 checklistsJul 22-31: 55 species on 5%+ of 30 checklistsAug 1-7: 52 species on 5%+ of 22 checklistsAug 8-14: 59 species on 5%+ of 19 checklistsAug 15-21: 50 species on 5%+ of 21 checklistsAug 22-31: 55 species on 5%+ of 28 checklistsSep 1-7: 66 species on 5%+ of 19 checklistsSep 8-14: low data (8 checklists)Sep 15-21: 60 species on 5%+ of 14 checklistsSep 22-30: 69 species on 5%+ of 18 checklistsOct 1-7: 77 species on 5%+ of 11 checklistsOct 8-14: 69 species on 5%+ of 18 checklistsOct 15-21: 64 species on 5%+ of 14 checklistsOct 22-31: 60 species on 5%+ of 20 checklistsNov 1-7: 66 species on 5%+ of 18 checklistsNov 8-14: 61 species on 5%+ of 14 checklistsNov 15-21: 68 species on 5%+ of 13 checklistsNov 22-30: 68 species on 5%+ of 12 checklistsDec 1-7: 67 species on 5%+ of 11 checklistsDec 8-14: 68 species on 5%+ of 10 checklistsDec 15-21: low data (4 checklists)Dec 22-31: 69 species on 5%+ of 40 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. 1American Coot93%
  2. 2Canada Goose89%
  3. 3Double-crested Cormorant86%
  4. 4Mallard86%
  5. 5Yellow-rumped Warbler81%
  6. 6Black Phoebe68%
  7. 7Pied-billed Grebe68%
  8. 8Anna's Hummingbird61%
  9. 9American Crow54%
  10. 10Snowy Egret54%
  11. 11Black-crowned Night Heron47%
  12. 12Turkey Vulture46%
  13. 13White-crowned Sparrow44%
  14. 14Great Blue Heron42%
  15. 15Great Egret40%

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 66 species

  1. Canada Goose94%
  2. American Coot91%
  3. Double-crested Cormorant89%
  4. Mallard87%
  5. Yellow-rumped Warbler85%

Spring 73 species

  1. Canada Goose96%
  2. Mallard90%
  3. American Coot86%
  4. Black-crowned Night Heron79%
  5. Snowy Egret76%

Summer 67 species

  1. Canada Goose96%
  2. Mallard94%
  3. Snowy Egret88%
  4. Great Egret83%
  5. Black Phoebe74%

Fall 63 species

  1. American Coot91%
  2. Canada Goose91%
  3. Mallard86%
  4. Double-crested Cormorant84%
  5. Black Phoebe80%

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.