WhenToBird

Birding spot · Adams County, Colorado

Birding at Eastlake Reservoir Number Three: What You'll See Each Week

In November, the birds most often reported at Eastlake Reservoir Number Three are Bufflehead (92%), Mallard (92%), and Ring-billed Gull (89%). It is busiest in spring, when 71 species turn up on at least 1 in 20 checklists, and species counts peak in mid May (94 species). 147 species have been reported here across 876 complete checklists from 182 birders.

Species by week

020406080100Jan 1-7: 48 species on 5%+ of 17 checklistsJan 8-14: 44 species on 5%+ of 11 checklistsJan 15-21: low data (8 checklists)Jan 22-31: 45 species on 5%+ of 13 checklistsFeb 1-7: 43 species on 5%+ of 13 checklistsFeb 8-14: 36 species on 5%+ of 10 checklistsFeb 15-21: 44 species on 5%+ of 29 checklistsFeb 22-28: 42 species on 5%+ of 21 checklistsMar 1-7: 41 species on 5%+ of 21 checklistsMar 8-14: 42 species on 5%+ of 23 checklistsMar 15-21: 45 species on 5%+ of 28 checklistsMar 22-31: 54 species on 5%+ of 32 checklistsApr 1-7: 52 species on 5%+ of 35 checklistsApr 8-14: 56 species on 5%+ of 31 checklistsApr 15-21: 58 species on 5%+ of 23 checklistsApr 22-30: 71 species on 5%+ of 34 checklistsMay 1-7: 74 species on 5%+ of 27 checklistsMay 8-14: 89 species on 5%+ of 32 checklistsMay 15-21: 94 species on 5%+ of 20 checklistsMay 22-31: 62 species on 5%+ of 22 checklistsJun 1-7: 58 species on 5%+ of 15 checklistsJun 8-14: low data (9 checklists)Jun 15-21: low data (4 checklists)Jun 22-30: 54 species on 5%+ of 16 checklistsJul 1-7: 60 species on 5%+ of 15 checklistsJul 8-14: 50 species on 5%+ of 10 checklistsJul 15-21: 55 species on 5%+ of 11 checklistsJul 22-31: 58 species on 5%+ of 16 checklistsAug 1-7: low data (6 checklists)Aug 8-14: low data (7 checklists)Aug 15-21: 54 species on 5%+ of 16 checklistsAug 22-31: 79 species on 5%+ of 20 checklistsSep 1-7: 51 species on 5%+ of 24 checklistsSep 8-14: 60 species on 5%+ of 22 checklistsSep 15-21: 68 species on 5%+ of 17 checklistsSep 22-30: 73 species on 5%+ of 20 checklistsOct 1-7: 52 species on 5%+ of 22 checklistsOct 8-14: 69 species on 5%+ of 19 checklistsOct 15-21: 60 species on 5%+ of 20 checklistsOct 22-31: 48 species on 5%+ of 25 checklistsNov 1-7: 52 species on 5%+ of 20 checklistsNov 8-14: 53 species on 5%+ of 13 checklistsNov 15-21: 55 species on 5%+ of 14 checklistsNov 22-30: 53 species on 5%+ of 18 checklistsDec 1-7: low data (9 checklists)Dec 8-14: low data (9 checklists)Dec 15-21: low data (9 checklists)Dec 22-31: 48 species on 5%+ of 20 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. 1Bufflehead92%
  2. 2Mallard92%
  3. 3Ring-billed Gull89%
  4. 4American Wigeon88%
  5. 5American Coot86%
  6. 6Redhead86%
  7. 7Ring-necked Duck85%
  8. 8Canada Goose77%
  9. 9Gadwall77%
  10. 10Northern Flicker72%
  11. 11Blue Jay68%
  12. 12Lesser Scaup66%
  13. 13House Finch65%
  14. 14Eurasian Collared-Dove58%
  15. 15Red-winged Blackbird58%

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 46 species

  1. Canada Goose83%
  2. Ring-billed Gull80%
  3. American Coot67%
  4. Northern Flicker67%
  5. Redhead67%

Spring 71 species

  1. Canada Goose96%
  2. Red-winged Blackbird92%
  3. Mallard90%
  4. Northern Flicker78%
  5. American Coot77%

Summer 57 species

  1. Mallard94%
  2. Canada Goose86%
  3. Barn Swallow86%
  4. Mourning Dove86%
  5. Killdeer81%

Fall 60 species

  1. Mallard92%
  2. Canada Goose86%
  3. Ring-billed Gull82%
  4. Blue Jay79%
  5. Northern Flicker78%

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.