WhenToBird

Birding spot · San Francisco County, California

Birding at Mountain Lake Park: What You'll See Each Week

In November, the birds most often reported at Mountain Lake Park are Pied-billed Grebe (90%), American Coot (89%), and Ruddy Duck (89%). It is busiest in fall, when 68 species turn up on at least 1 in 20 checklists, and species counts peak in early October (70 species). 152 species have been reported here across 1,678 complete checklists from 462 birders.

Species by week

020406080Jan 1-7: 57 species on 5%+ of 45 checklistsJan 8-14: 57 species on 5%+ of 29 checklistsJan 15-21: 64 species on 5%+ of 39 checklistsJan 22-31: 63 species on 5%+ of 39 checklistsFeb 1-7: 51 species on 5%+ of 24 checklistsFeb 8-14: 53 species on 5%+ of 24 checklistsFeb 15-21: 60 species on 5%+ of 33 checklistsFeb 22-28: 62 species on 5%+ of 36 checklistsMar 1-7: 49 species on 5%+ of 28 checklistsMar 8-14: 58 species on 5%+ of 23 checklistsMar 15-21: 61 species on 5%+ of 27 checklistsMar 22-31: 62 species on 5%+ of 28 checklistsApr 1-7: 60 species on 5%+ of 26 checklistsApr 8-14: 63 species on 5%+ of 30 checklistsApr 15-21: 57 species on 5%+ of 41 checklistsApr 22-30: 64 species on 5%+ of 32 checklistsMay 1-7: 47 species on 5%+ of 29 checklistsMay 8-14: 67 species on 5%+ of 38 checklistsMay 15-21: 49 species on 5%+ of 28 checklistsMay 22-31: 57 species on 5%+ of 30 checklistsJun 1-7: 63 species on 5%+ of 36 checklistsJun 8-14: 53 species on 5%+ of 32 checklistsJun 15-21: 57 species on 5%+ of 25 checklistsJun 22-30: 57 species on 5%+ of 59 checklistsJul 1-7: 56 species on 5%+ of 32 checklistsJul 8-14: 52 species on 5%+ of 34 checklistsJul 15-21: 57 species on 5%+ of 35 checklistsJul 22-31: 54 species on 5%+ of 35 checklistsAug 1-7: 46 species on 5%+ of 22 checklistsAug 8-14: 52 species on 5%+ of 25 checklistsAug 15-21: 60 species on 5%+ of 40 checklistsAug 22-31: 63 species on 5%+ of 79 checklistsSep 1-7: 58 species on 5%+ of 74 checklistsSep 8-14: 59 species on 5%+ of 50 checklistsSep 15-21: 69 species on 5%+ of 57 checklistsSep 22-30: 67 species on 5%+ of 69 checklistsOct 1-7: 70 species on 5%+ of 29 checklistsOct 8-14: 65 species on 5%+ of 25 checklistsOct 15-21: 66 species on 5%+ of 29 checklistsOct 22-31: 62 species on 5%+ of 28 checklistsNov 1-7: 53 species on 5%+ of 22 checklistsNov 8-14: 60 species on 5%+ of 36 checklistsNov 15-21: 66 species on 5%+ of 30 checklistsNov 22-30: 58 species on 5%+ of 52 checklistsDec 1-7: 60 species on 5%+ of 20 checklistsDec 8-14: low data (7 checklists)Dec 15-21: 63 species on 5%+ of 25 checklistsDec 22-31: 64 species on 5%+ of 42 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. 1Pied-billed Grebe90%
  2. 2American Coot89%
  3. 3Ruddy Duck89%
  4. 4Yellow-rumped Warbler76%
  5. 5Bufflehead75%
  6. 6White-crowned Sparrow73%
  7. 7Black Phoebe68%
  8. 8Ruby-crowned Kinglet65%
  9. 9Ring-necked Duck64%
  10. 10Anna's Hummingbird64%
  11. 11Mallard63%
  12. 12Double-crested Cormorant58%
  13. 13Song Sparrow56%
  14. 14Hermit Thrush53%
  15. 15Pygmy Nuthatch53%

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 61 species

  1. Ruddy Duck84%
  2. Anna's Hummingbird84%
  3. American Coot82%
  4. Bufflehead81%
  5. Pied-billed Grebe80%

Spring 63 species

  1. Red-winged Blackbird80%
  2. Anna's Hummingbird75%
  3. American Robin71%
  4. Pied-billed Grebe69%
  5. American Coot69%

Summer 58 species

  1. Anna's Hummingbird72%
  2. Pied-billed Grebe70%
  3. Song Sparrow70%
  4. American Robin69%
  5. Dark-eyed Junco69%

Fall 68 species

  1. Pied-billed Grebe79%
  2. Anna's Hummingbird77%
  3. American Coot76%
  4. White-crowned Sparrow74%
  5. Ruddy Duck69%

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.