WhenToBird

Birding spot · San Luis Obispo County, California

Birding at Sweet Springs Marsh: What You'll See Each Week

In November, the birds most often reported at Sweet Springs Marsh are American Crow (81%), Yellow-rumped Warbler (78%), and Ruby-crowned Kinglet (68%). It is busiest in winter, when 95 species turn up on at least 1 in 20 checklists, and species counts peak in the second week of November (110 species). 191 species have been reported here across 1,143 complete checklists from 313 birders.

Species by week

0255075100125Jan 1-7: 97 species on 5%+ of 34 checklistsJan 8-14: 92 species on 5%+ of 30 checklistsJan 15-21: 86 species on 5%+ of 46 checklistsJan 22-31: 90 species on 5%+ of 25 checklistsFeb 1-7: 92 species on 5%+ of 11 checklistsFeb 8-14: low data (8 checklists)Feb 15-21: low data (7 checklists)Feb 22-28: low data (9 checklists)Mar 1-7: 82 species on 5%+ of 11 checklistsMar 8-14: 91 species on 5%+ of 15 checklistsMar 15-21: low data (8 checklists)Mar 22-31: 70 species on 5%+ of 23 checklistsApr 1-7: 91 species on 5%+ of 16 checklistsApr 8-14: 99 species on 5%+ of 15 checklistsApr 15-21: 95 species on 5%+ of 17 checklistsApr 22-30: 73 species on 5%+ of 24 checklistsMay 1-7: 105 species on 5%+ of 20 checklistsMay 8-14: 70 species on 5%+ of 33 checklistsMay 15-21: 71 species on 5%+ of 15 checklistsMay 22-31: 77 species on 5%+ of 15 checklistsJun 1-7: 54 species on 5%+ of 22 checklistsJun 8-14: low data (5 checklists)Jun 15-21: low data (9 checklists)Jun 22-30: low data (5 checklists)Jul 1-7: 72 species on 5%+ of 19 checklistsJul 8-14: low data (9 checklists)Jul 15-21: low data (5 checklists)Jul 22-31: low data (5 checklists)Aug 1-7: low data (9 checklists)Aug 8-14: 62 species on 5%+ of 26 checklistsAug 15-21: 60 species on 5%+ of 17 checklistsAug 22-31: 71 species on 5%+ of 31 checklistsSep 1-7: 52 species on 5%+ of 44 checklistsSep 8-14: 74 species on 5%+ of 62 checklistsSep 15-21: 73 species on 5%+ of 63 checklistsSep 22-30: 78 species on 5%+ of 116 checklistsOct 1-7: 80 species on 5%+ of 100 checklistsOct 8-14: 71 species on 5%+ of 52 checklistsOct 15-21: 89 species on 5%+ of 20 checklistsOct 22-31: 80 species on 5%+ of 26 checklistsNov 1-7: 88 species on 5%+ of 10 checklistsNov 8-14: 110 species on 5%+ of 12 checklistsNov 15-21: 81 species on 5%+ of 21 checklistsNov 22-30: 84 species on 5%+ of 26 checklistsDec 1-7: 82 species on 5%+ of 11 checklistsDec 8-14: low data (6 checklists)Dec 15-21: low data (9 checklists)Dec 22-31: 61 species on 5%+ of 21 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 Crow81%
  2. 2Yellow-rumped Warbler78%
  3. 3Ruby-crowned Kinglet68%
  4. 4Chestnut-backed Chickadee67%
  5. 5Anna's Hummingbird64%
  6. 6Black Phoebe64%
  7. 7White-crowned Sparrow64%
  8. 8Marbled Godwit62%
  9. 9Song Sparrow62%
  10. 10Willet62%
  11. 11Black-bellied Plover61%
  12. 12Great Egret57%
  13. 13House Finch57%
  14. 14Western Gull57%
  15. 15Bufflehead55%

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 95 species

  1. Yellow-rumped Warbler75%
  2. American Crow72%
  3. Bufflehead65%
  4. Willet63%
  5. Marbled Godwit59%

Spring 94 species

  1. American Crow90%
  2. Song Sparrow83%
  3. Chestnut-backed Chickadee75%
  4. House Finch67%
  5. Anna's Hummingbird63%

Summer 66 species

  1. American Crow93%
  2. Chestnut-backed Chickadee83%
  3. Anna's Hummingbird81%
  4. House Finch70%
  5. Song Sparrow65%

Fall 79 species

  1. American Crow86%
  2. Chestnut-backed Chickadee84%
  3. Anna's Hummingbird82%
  4. Song Sparrow69%
  5. House Finch66%

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.