WhenToBird

Birding spot · Sacramento County, California

Birding at Cosumnes River Area of Critical Environmental Concern: What You'll See Each Week

In November, the birds most often reported at Cosumnes River Area of Critical Environmental Concern are Greater White-fronted Goose (93%), Northern Shoveler (91%), and Black-necked Stilt (88%). It is busiest in spring, when 84 species turn up on at least 1 in 20 checklists, and species counts peak in early March (88 species). 155 species have been reported here across 1,397 complete checklists from 684 birders.

Species by week

020406080100Jan 1-7: 73 species on 5%+ of 59 checklistsJan 8-14: 74 species on 5%+ of 54 checklistsJan 15-21: 75 species on 5%+ of 55 checklistsJan 22-31: 70 species on 5%+ of 63 checklistsFeb 1-7: 69 species on 5%+ of 43 checklistsFeb 8-14: 75 species on 5%+ of 52 checklistsFeb 15-21: 75 species on 5%+ of 54 checklistsFeb 22-28: 77 species on 5%+ of 32 checklistsMar 1-7: 88 species on 5%+ of 22 checklistsMar 8-14: 78 species on 5%+ of 29 checklistsMar 15-21: 73 species on 5%+ of 35 checklistsMar 22-31: 81 species on 5%+ of 28 checklistsApr 1-7: 69 species on 5%+ of 14 checklistsApr 8-14: 75 species on 5%+ of 23 checklistsApr 15-21: 69 species on 5%+ of 21 checklistsApr 22-30: 67 species on 5%+ of 29 checklistsMay 1-7: 82 species on 5%+ of 20 checklistsMay 8-14: 71 species on 5%+ of 17 checklistsMay 15-21: 66 species on 5%+ of 15 checklistsMay 22-31: 62 species on 5%+ of 10 checklistsJun 1-7: low data (4 checklists)Jun 8-14: low data (7 checklists)Jun 15-21: low data (5 checklists)Jun 22-30: low data (8 checklists)Jul 1-7: low data (7 checklists)Jul 8-14: 61 species on 5%+ of 12 checklistsJul 15-21: low data (7 checklists)Jul 22-31: low data (8 checklists)Aug 1-7: low data (3 checklists)Aug 8-14: low data (7 checklists)Aug 15-21: low data (5 checklists)Aug 22-31: 47 species on 5%+ of 12 checklistsSep 1-7: 56 species on 5%+ of 11 checklistsSep 8-14: 64 species on 5%+ of 11 checklistsSep 15-21: low data (7 checklists)Sep 22-30: 68 species on 5%+ of 26 checklistsOct 1-7: 65 species on 5%+ of 24 checklistsOct 8-14: 64 species on 5%+ of 33 checklistsOct 15-21: 74 species on 5%+ of 27 checklistsOct 22-31: 75 species on 5%+ of 37 checklistsNov 1-7: 71 species on 5%+ of 54 checklistsNov 8-14: 69 species on 5%+ of 50 checklistsNov 15-21: 84 species on 5%+ of 60 checklistsNov 22-30: 75 species on 5%+ of 76 checklistsDec 1-7: 72 species on 5%+ of 50 checklistsDec 8-14: 79 species on 5%+ of 54 checklistsDec 15-21: 81 species on 5%+ of 37 checklistsDec 22-31: 78 species on 5%+ of 80 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 Goose93%
  2. 2Northern Shoveler91%
  3. 3Black-necked Stilt88%
  4. 4American Coot85%
  5. 5Northern Pintail85%
  6. 6Black Phoebe84%
  7. 7Sandhill Crane82%
  8. 8Red-winged Blackbird79%
  9. 9Canada Goose79%
  10. 10Killdeer78%
  11. 11Greater Yellowlegs78%
  12. 12Great Egret74%
  13. 13White-crowned Sparrow73%
  14. 14Green-winged Teal71%
  15. 15Northern Harrier65%

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 78 species

  1. Northern Shoveler95%
  2. American Coot93%
  3. Greater White-fronted Goose93%
  4. Black-necked Stilt92%
  5. Green-winged Teal92%

Spring 84 species

  1. Red-winged Blackbird92%
  2. American Coot81%
  3. Black Phoebe80%
  4. Marsh Wren75%
  5. Great Egret73%

Summer 59 species

  1. Black Phoebe79%
  2. Great Egret74%
  3. House Finch68%
  4. Red-winged Blackbird67%
  5. Song Sparrow66%

Fall 76 species

  1. Northern Shoveler83%
  2. Black Phoebe82%
  3. Black-necked Stilt81%
  4. Sandhill Crane80%
  5. Greater White-fronted Goose80%

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.