WhenToBird

Birding spot · Sacramento County, California

Birding at Cosumnes River Ecological Reserve: What You'll See Each Week

In November, the birds most often reported at Cosumnes River Ecological Reserve are Greater White-fronted Goose (89%), Black Phoebe (87%), and Sandhill Crane (84%). It is busiest in spring, when 103 species turn up on at least 1 in 20 checklists, and species counts peak in late April (107 species). 206 species have been reported here across 4,124 complete checklists from 1,473 birders.

Species by week

0255075100125Jan 1-7: 95 species on 5%+ of 134 checklistsJan 8-14: 95 species on 5%+ of 100 checklistsJan 15-21: 96 species on 5%+ of 120 checklistsJan 22-31: 94 species on 5%+ of 165 checklistsFeb 1-7: 94 species on 5%+ of 72 checklistsFeb 8-14: 93 species on 5%+ of 90 checklistsFeb 15-21: 91 species on 5%+ of 125 checklistsFeb 22-28: 97 species on 5%+ of 79 checklistsMar 1-7: 100 species on 5%+ of 74 checklistsMar 8-14: 97 species on 5%+ of 72 checklistsMar 15-21: 99 species on 5%+ of 63 checklistsMar 22-31: 104 species on 5%+ of 90 checklistsApr 1-7: 100 species on 5%+ of 74 checklistsApr 8-14: 101 species on 5%+ of 78 checklistsApr 15-21: 102 species on 5%+ of 67 checklistsApr 22-30: 107 species on 5%+ of 100 checklistsMay 1-7: 101 species on 5%+ of 69 checklistsMay 8-14: 92 species on 5%+ of 72 checklistsMay 15-21: 80 species on 5%+ of 50 checklistsMay 22-31: 83 species on 5%+ of 98 checklistsJun 1-7: 69 species on 5%+ of 50 checklistsJun 8-14: 71 species on 5%+ of 68 checklistsJun 15-21: 68 species on 5%+ of 46 checklistsJun 22-30: 67 species on 5%+ of 75 checklistsJul 1-7: 69 species on 5%+ of 43 checklistsJul 8-14: 75 species on 5%+ of 32 checklistsJul 15-21: 74 species on 5%+ of 35 checklistsJul 22-31: 82 species on 5%+ of 59 checklistsAug 1-7: 66 species on 5%+ of 43 checklistsAug 8-14: 68 species on 5%+ of 51 checklistsAug 15-21: 67 species on 5%+ of 41 checklistsAug 22-31: 83 species on 5%+ of 56 checklistsSep 1-7: 81 species on 5%+ of 51 checklistsSep 8-14: 87 species on 5%+ of 50 checklistsSep 15-21: 93 species on 5%+ of 56 checklistsSep 22-30: 89 species on 5%+ of 85 checklistsOct 1-7: 91 species on 5%+ of 76 checklistsOct 8-14: 88 species on 5%+ of 96 checklistsOct 15-21: 93 species on 5%+ of 95 checklistsOct 22-31: 98 species on 5%+ of 136 checklistsNov 1-7: 89 species on 5%+ of 131 checklistsNov 8-14: 95 species on 5%+ of 142 checklistsNov 15-21: 95 species on 5%+ of 156 checklistsNov 22-30: 91 species on 5%+ of 185 checklistsDec 1-7: 88 species on 5%+ of 110 checklistsDec 8-14: 92 species on 5%+ of 101 checklistsDec 15-21: 93 species on 5%+ of 91 checklistsDec 22-31: 93 species on 5%+ of 172 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. 1Greater White-fronted Goose89%
  2. 2Black Phoebe87%
  3. 3Sandhill Crane84%
  4. 4Northern Pintail81%
  5. 5Northern Shoveler81%
  6. 6Red-winged Blackbird77%
  7. 7Black-necked Stilt77%
  8. 8American Coot76%
  9. 9Turkey Vulture76%
  10. 10Great Egret74%
  11. 11Canada Goose73%
  12. 12White-crowned Sparrow72%
  13. 13Greater Yellowlegs69%
  14. 14Killdeer68%
  15. 15Green-winged Teal67%

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. Greater White-fronted Goose89%
  2. Black Phoebe88%
  3. Northern Shoveler84%
  4. Northern Pintail84%
  5. Turkey Vulture80%

Spring 103 species

  1. Tree Swallow91%
  2. Red-winged Blackbird90%
  3. Black Phoebe88%
  4. Great Egret83%
  5. Turkey Vulture82%

Summer 74 species

  1. Spotted Towhee88%
  2. California Scrub-Jay87%
  3. Turkey Vulture83%
  4. Black Phoebe81%
  5. Great Egret75%

Fall 94 species

  1. Black Phoebe85%
  2. Red-winged Blackbird80%
  3. Turkey Vulture77%
  4. Sandhill Crane76%
  5. Greater White-fronted Goose72%

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.