WhenToBird

Birding spot · Jefferson County, Colorado

Birding at Chatfield State Park (north): What You'll See Each Week

In November, the birds most often reported at Chatfield State Park (north) are Canada Goose (76%), American Coot (75%), and Ring-billed Gull (57%). It is busiest in spring, when 68 species turn up on at least 1 in 20 checklists, and species counts peak in late July (65 species). 170 species have been reported here across 1,060 complete checklists from 348 birders.

Species by week

020406080Jan 1-7: low data (9 checklists)Jan 8-14: low data (5 checklists)Jan 15-21: low data (2 checklists)Jan 22-31: low data (2 checklists)Feb 1-7: low data (4 checklists)Feb 8-14: low data (2 checklists)Feb 15-21: low data (2 checklists)Feb 22-28: low data (6 checklists)Mar 1-7: low data (7 checklists)Mar 8-14: low data (5 checklists)Mar 15-21: low data (8 checklists)Mar 22-31: 49 species on 5%+ of 16 checklistsApr 1-7: 50 species on 5%+ of 20 checklistsApr 8-14: 54 species on 5%+ of 16 checklistsApr 15-21: 61 species on 5%+ of 74 checklistsApr 22-30: 60 species on 5%+ of 55 checklistsMay 1-7: 61 species on 5%+ of 33 checklistsMay 8-14: 58 species on 5%+ of 29 checklistsMay 15-21: 58 species on 5%+ of 24 checklistsMay 22-31: 42 species on 5%+ of 26 checklistsJun 1-7: low data (6 checklists)Jun 8-14: low data (4 checklists)Jun 15-21: 32 species on 5%+ of 33 checklistsJun 22-30: 33 species on 5%+ of 22 checklistsJul 1-7: low data (3 checklists)Jul 8-14: low data (4 checklists)Jul 15-21: low data (4 checklists)Jul 22-31: 65 species on 5%+ of 18 checklistsAug 1-7: 50 species on 5%+ of 11 checklistsAug 8-14: low data (9 checklists)Aug 15-21: low data (9 checklists)Aug 22-31: 45 species on 5%+ of 48 checklistsSep 1-7: 51 species on 5%+ of 31 checklistsSep 8-14: 62 species on 5%+ of 59 checklistsSep 15-21: 49 species on 5%+ of 74 checklistsSep 22-30: 53 species on 5%+ of 59 checklistsOct 1-7: 57 species on 5%+ of 25 checklistsOct 8-14: 43 species on 5%+ of 27 checklistsOct 15-21: 50 species on 5%+ of 18 checklistsOct 22-31: 52 species on 5%+ of 33 checklistsNov 1-7: 39 species on 5%+ of 51 checklistsNov 8-14: 48 species on 5%+ of 55 checklistsNov 15-21: 29 species on 5%+ of 25 checklistsNov 22-30: 34 species on 5%+ of 26 checklistsDec 1-7: 44 species on 5%+ of 13 checklistsDec 8-14: 54 species on 5%+ of 19 checklistsDec 15-21: 32 species on 5%+ of 13 checklistsDec 22-31: 42 species on 5%+ of 16 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. 1Canada Goose76%
  2. 2American Coot75%
  3. 3Ring-billed Gull57%
  4. 4Mallard53%
  5. 5Western Grebe52%
  6. 6Black-billed Magpie41%
  7. 7American Crow35%
  8. 8American White Pelican34%
  9. 9American Wigeon33%
  10. 10Cackling Goose32%
  11. 11Northern Flicker26%
  12. 12Common Loon24%
  13. 13Gadwall24%
  14. 14Pied-billed Grebe22%
  15. 15Red-tailed Hawk18%

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 40 species

  1. Canada Goose69%
  2. Mallard66%
  3. American Coot54%
  4. Ring-billed Gull52%
  5. Black-billed Magpie49%

Spring 68 species

  1. Canada Goose78%
  2. Mallard74%
  3. Killdeer62%
  4. Red-winged Blackbird53%
  5. Western Meadowlark47%

Summer 51 species

  1. Ring-billed Gull88%
  2. Canada Goose77%
  3. Mallard70%
  4. Killdeer70%
  5. Double-crested Cormorant64%

Fall 49 species

  1. Ring-billed Gull72%
  2. Canada Goose71%
  3. Mallard60%
  4. American Coot48%
  5. American White Pelican48%

Specialties

Birds reported far more often here than across Colorado.

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.