WhenToBird

Birding spot · Contra Costa County, California

Birding at Tilden Regional Park: What You'll See Each Week

In November, the birds most often reported at Tilden Regional Park are Ruby-crowned Kinglet (87%), Dark-eyed Junco (83%), and Northern Flicker (82%). It is busiest in spring, when 65 species turn up on at least 1 in 20 checklists, and species counts peak in early May (64 species). 128 species have been reported here across 1,888 complete checklists from 472 birders.

Species by week

020406080Jan 1-7: 35 species on 5%+ of 11 checklistsJan 8-14: 37 species on 5%+ of 10 checklistsJan 15-21: 41 species on 5%+ of 13 checklistsJan 22-31: 56 species on 5%+ of 19 checklistsFeb 1-7: 48 species on 5%+ of 15 checklistsFeb 8-14: 41 species on 5%+ of 22 checklistsFeb 15-21: 51 species on 5%+ of 19 checklistsFeb 22-28: 44 species on 5%+ of 15 checklistsMar 1-7: 51 species on 5%+ of 29 checklistsMar 8-14: 42 species on 5%+ of 22 checklistsMar 15-21: 50 species on 5%+ of 31 checklistsMar 22-31: 54 species on 5%+ of 47 checklistsApr 1-7: 56 species on 5%+ of 34 checklistsApr 8-14: 62 species on 5%+ of 36 checklistsApr 15-21: 58 species on 5%+ of 43 checklistsApr 22-30: 57 species on 5%+ of 61 checklistsMay 1-7: 64 species on 5%+ of 58 checklistsMay 8-14: 61 species on 5%+ of 81 checklistsMay 15-21: 57 species on 5%+ of 73 checklistsMay 22-31: 58 species on 5%+ of 62 checklistsJun 1-7: 55 species on 5%+ of 34 checklistsJun 8-14: 51 species on 5%+ of 24 checklistsJun 15-21: 51 species on 5%+ of 29 checklistsJun 22-30: 48 species on 5%+ of 21 checklistsJul 1-7: 42 species on 5%+ of 21 checklistsJul 8-14: 49 species on 5%+ of 84 checklistsJul 15-21: 45 species on 5%+ of 89 checklistsJul 22-31: 46 species on 5%+ of 53 checklistsAug 1-7: 53 species on 5%+ of 33 checklistsAug 8-14: 42 species on 5%+ of 25 checklistsAug 15-21: 43 species on 5%+ of 27 checklistsAug 22-31: 54 species on 5%+ of 54 checklistsSep 1-7: 49 species on 5%+ of 46 checklistsSep 8-14: 58 species on 5%+ of 79 checklistsSep 15-21: 60 species on 5%+ of 95 checklistsSep 22-30: 62 species on 5%+ of 101 checklistsOct 1-7: 58 species on 5%+ of 69 checklistsOct 8-14: 48 species on 5%+ of 45 checklistsOct 15-21: 57 species on 5%+ of 60 checklistsOct 22-31: 53 species on 5%+ of 57 checklistsNov 1-7: 50 species on 5%+ of 31 checklistsNov 8-14: 60 species on 5%+ of 14 checklistsNov 15-21: 57 species on 5%+ of 15 checklistsNov 22-30: 47 species on 5%+ of 16 checklistsDec 1-7: low data (8 checklists)Dec 8-14: 41 species on 5%+ of 23 checklistsDec 15-21: 43 species on 5%+ of 21 checklistsDec 22-31: 43 species on 5%+ of 13 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. 1Ruby-crowned Kinglet87%
  2. 2Dark-eyed Junco83%
  3. 3Northern Flicker82%
  4. 4California Scrub-Jay80%
  5. 5Hermit Thrush79%
  6. 6Common Raven76%
  7. 7Golden-crowned Sparrow76%
  8. 8Wrentit76%
  9. 9Red-breasted Nuthatch75%
  10. 10Bewick's Wren74%
  11. 11Chestnut-backed Chickadee74%
  12. 12Pygmy Nuthatch74%
  13. 13Fox Sparrow67%
  14. 14Spotted Towhee66%
  15. 15Steller's Jay61%

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 46 species

  1. Dark-eyed Junco73%
  2. Ruby-crowned Kinglet71%
  3. Chestnut-backed Chickadee69%
  4. Wrentit68%
  5. Hermit Thrush66%

Spring 65 species

  1. Dark-eyed Junco93%
  2. Wrentit87%
  3. Spotted Towhee84%
  4. Anna's Hummingbird83%
  5. Bewick's Wren80%

Summer 52 species

  1. Dark-eyed Junco97%
  2. Wrentit85%
  3. Spotted Towhee83%
  4. Chestnut-backed Chickadee82%
  5. Pygmy Nuthatch81%

Fall 61 species

  1. Dark-eyed Junco93%
  2. Spotted Towhee86%
  3. Chestnut-backed Chickadee85%
  4. Pygmy Nuthatch84%
  5. California Scrub-Jay84%

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.