Birding spot · Adams County, Colorado
Birding at Lake Mary: What You'll See Each Week In November, the birds most often reported at Lake Mary are Black-billed Magpie (79%), Ring-billed Gull (71%), and Canada Goose (64%). It is busiest in spring, when 85 species turn up on at least 1 in 20 checklists, and species counts peak in mid September (101 species). 207 species have been reported here across 1,514 complete checklists from 739 birders.
Species by week 0 25 50 75 100 125 Jan 1-7: 41 species on 5%+ of 13 checklists Jan 8-14: 49 species on 5%+ of 18 checklists Jan 15-21: 36 species on 5%+ of 26 checklists Jan 22-31: 41 species on 5%+ of 28 checklists Feb 1-7: 38 species on 5%+ of 17 checklists Feb 8-14: 56 species on 5%+ of 18 checklists Feb 15-21: 38 species on 5%+ of 12 checklists Feb 22-28: 44 species on 5%+ of 23 checklists Mar 1-7: 50 species on 5%+ of 30 checklists Mar 8-14: 56 species on 5%+ of 29 checklists Mar 15-21: 61 species on 5%+ of 35 checklists Mar 22-31: 59 species on 5%+ of 44 checklists Apr 1-7: 65 species on 5%+ of 46 checklists Apr 8-14: 74 species on 5%+ of 64 checklists Apr 15-21: 78 species on 5%+ of 46 checklists Apr 22-30: 86 species on 5%+ of 53 checklists May 1-7: 80 species on 5%+ of 44 checklists May 8-14: 93 species on 5%+ of 40 checklists May 15-21: 90 species on 5%+ of 45 checklists May 22-31: 88 species on 5%+ of 52 checklists Jun 1-7: 70 species on 5%+ of 42 checklists Jun 8-14: 79 species on 5%+ of 38 checklists Jun 15-21: 75 species on 5%+ of 43 checklists Jun 22-30: 69 species on 5%+ of 42 checklists Jul 1-7: 76 species on 5%+ of 27 checklists Jul 8-14: 68 species on 5%+ of 34 checklists Jul 15-21: 71 species on 5%+ of 33 checklists Jul 22-31: 67 species on 5%+ of 22 checklists Aug 1-7: 57 species on 5%+ of 21 checklists Aug 8-14: 96 species on 5%+ of 31 checklists Aug 15-21: 82 species on 5%+ of 31 checklists Aug 22-31: 99 species on 5%+ of 34 checklists Sep 1-7: 72 species on 5%+ of 21 checklists Sep 8-14: 94 species on 5%+ of 36 checklists Sep 15-21: 101 species on 5%+ of 19 checklists Sep 22-30: 83 species on 5%+ of 40 checklists Oct 1-7: 69 species on 5%+ of 33 checklists Oct 8-14: 67 species on 5%+ of 22 checklists Oct 15-21: 73 species on 5%+ of 39 checklists Oct 22-31: 65 species on 5%+ of 39 checklists Nov 1-7: 62 species on 5%+ of 35 checklists Nov 8-14: 56 species on 5%+ of 22 checklists Nov 15-21: 69 species on 5%+ of 15 checklists Nov 22-30: 61 species on 5%+ of 29 checklists Dec 1-7: 56 species on 5%+ of 25 checklists Dec 8-14: 60 species on 5%+ of 17 checklists Dec 15-21: 64 species on 5%+ of 19 checklists Dec 22-31: 46 species on 5%+ of 22 checklists Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 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 Black-billed Magpie 79% 2 Ring-billed Gull 71% 3 Canada Goose 64% 4 Bufflehead 63% 5 Mallard 63% 6 Red-tailed Hawk 61% 7 American Coot 56% 8 Gadwall 51% 9 Hooded Merganser 51% 10 Northern Flicker 51% 11 American Tree Sparrow 50% 12 Bald Eagle 50% 13 Northern Shoveler 50% 14 Common Goldeneye 46% 15 European Starling 46% 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 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 .
Black-billed Magpie79%
Ring-billed Gull71%
Canada Goose64%
Bufflehead63%
Mallard63%
Red-tailed Hawk61%
American Coot56%
Gadwall51%
Hooded Merganser51%
Northern Flicker51%
American Tree Sparrow50%
Bald Eagle50%
Northern Shoveler50%
Common Goldeneye46%
European Starling46%