WhenToBird

Birding spot · Marin County, California

Birding at Corte Madera Marsh Ecological Reserve (north): What You'll See Each Week

In November, the birds most often reported at Corte Madera Marsh Ecological Reserve (north) are Snowy Egret (85%), Black-necked Stilt (84%), and Green-winged Teal (80%). It is busiest in spring, when 87 species turn up on at least 1 in 20 checklists, and species counts peak in the second week of December (103 species). 162 species have been reported here across 809 complete checklists from 329 birders.

Species by week

0255075100125Jan 1-7: 95 species on 5%+ of 36 checklistsJan 8-14: 100 species on 5%+ of 16 checklistsJan 15-21: 82 species on 5%+ of 30 checklistsJan 22-31: 92 species on 5%+ of 35 checklistsFeb 1-7: 90 species on 5%+ of 33 checklistsFeb 8-14: 81 species on 5%+ of 23 checklistsFeb 15-21: 78 species on 5%+ of 22 checklistsFeb 22-28: 91 species on 5%+ of 19 checklistsMar 1-7: 74 species on 5%+ of 11 checklistsMar 8-14: 86 species on 5%+ of 11 checklistsMar 15-21: 87 species on 5%+ of 11 checklistsMar 22-31: 84 species on 5%+ of 24 checklistsApr 1-7: 82 species on 5%+ of 18 checklistsApr 8-14: 89 species on 5%+ of 13 checklistsApr 15-21: 85 species on 5%+ of 17 checklistsApr 22-30: 81 species on 5%+ of 15 checklistsMay 1-7: 58 species on 5%+ of 10 checklistsMay 8-14: low data (4 checklists)May 15-21: 55 species on 5%+ of 10 checklistsMay 22-31: 56 species on 5%+ of 14 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 (6 checklists)Jul 1-7: low data (8 checklists)Jul 8-14: 58 species on 5%+ of 12 checklistsJul 15-21: 59 species on 5%+ of 15 checklistsJul 22-31: 63 species on 5%+ of 15 checklistsAug 1-7: 68 species on 5%+ of 13 checklistsAug 8-14: 71 species on 5%+ of 16 checklistsAug 15-21: low data (6 checklists)Aug 22-31: 59 species on 5%+ of 22 checklistsSep 1-7: 69 species on 5%+ of 11 checklistsSep 8-14: 93 species on 5%+ of 14 checklistsSep 15-21: 71 species on 5%+ of 11 checklistsSep 22-30: 100 species on 5%+ of 18 checklistsOct 1-7: 83 species on 5%+ of 17 checklistsOct 8-14: 95 species on 5%+ of 14 checklistsOct 15-21: 62 species on 5%+ of 23 checklistsOct 22-31: 75 species on 5%+ of 24 checklistsNov 1-7: 93 species on 5%+ of 18 checklistsNov 8-14: 92 species on 5%+ of 14 checklistsNov 15-21: 91 species on 5%+ of 18 checklistsNov 22-30: 80 species on 5%+ of 24 checklistsDec 1-7: 77 species on 5%+ of 23 checklistsDec 8-14: 103 species on 5%+ of 18 checklistsDec 15-21: 92 species on 5%+ of 10 checklistsDec 22-31: 78 species on 5%+ of 44 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. 1Snowy Egret85%
  2. 2Black-necked Stilt84%
  3. 3Green-winged Teal80%
  4. 4Northern Shoveler80%
  5. 5Great Egret76%
  6. 6American Avocet74%
  7. 7White-crowned Sparrow73%
  8. 8Mallard69%
  9. 9American Wigeon66%
  10. 10Turkey Vulture66%
  11. 11Song Sparrow65%
  12. 12American Crow64%
  13. 13American Coot62%
  14. 14Black Phoebe62%
  15. 15Bufflehead62%

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 86 species

  1. Green-winged Teal87%
  2. Black-necked Stilt83%
  3. American Wigeon83%
  4. Mallard79%
  5. American Avocet77%

Spring 87 species

  1. Mallard85%
  2. Song Sparrow85%
  3. Snowy Egret80%
  4. Black-necked Stilt72%
  5. Canada Goose70%

Summer 66 species

  1. Snowy Egret88%
  2. Song Sparrow77%
  3. Black-necked Stilt76%
  4. Great Egret76%
  5. House Finch72%

Fall 87 species

  1. Snowy Egret85%
  2. Black-necked Stilt82%
  3. Great Egret72%
  4. Black Phoebe66%
  5. Song Sparrow66%

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.