Birding spot · Adams County, Colorado
Birding at Barr Lake (northwest): What You'll See Each Week In November, the birds most often reported at Barr Lake (northwest) are Bald Eagle (80%), Mallard (80%), and Canada Goose (76%). It is busiest in fall, when 100 species turn up on at least 1 in 20 checklists, and species counts peak in the second week of September (108 species). 236 species have been reported here across 2,694 complete checklists from 1,144 birders.
Species by week 0 25 50 75 100 125 Jan 1-7: 57 species on 5%+ of 67 checklists Jan 8-14: 56 species on 5%+ of 65 checklists Jan 15-21: 48 species on 5%+ of 73 checklists Jan 22-31: 53 species on 5%+ of 83 checklists Feb 1-7: 46 species on 5%+ of 49 checklists Feb 8-14: 52 species on 5%+ of 49 checklists Feb 15-21: 55 species on 5%+ of 70 checklists Feb 22-28: 51 species on 5%+ of 62 checklists Mar 1-7: 62 species on 5%+ of 40 checklists Mar 8-14: 57 species on 5%+ of 52 checklists Mar 15-21: 59 species on 5%+ of 38 checklists Mar 22-31: 60 species on 5%+ of 79 checklists Apr 1-7: 64 species on 5%+ of 46 checklists Apr 8-14: 66 species on 5%+ of 47 checklists Apr 15-21: 68 species on 5%+ of 26 checklists Apr 22-30: 75 species on 5%+ of 85 checklists May 1-7: 87 species on 5%+ of 55 checklists May 8-14: 94 species on 5%+ of 70 checklists May 15-21: 89 species on 5%+ of 56 checklists May 22-31: 82 species on 5%+ of 76 checklists Jun 1-7: 65 species on 5%+ of 27 checklists Jun 8-14: 55 species on 5%+ of 24 checklists Jun 15-21: 67 species on 5%+ of 33 checklists Jun 22-30: 64 species on 5%+ of 39 checklists Jul 1-7: 63 species on 5%+ of 42 checklists Jul 8-14: 68 species on 5%+ of 27 checklists Jul 15-21: 77 species on 5%+ of 22 checklists Jul 22-31: 66 species on 5%+ of 43 checklists Aug 1-7: 75 species on 5%+ of 30 checklists Aug 8-14: 90 species on 5%+ of 52 checklists Aug 15-21: 93 species on 5%+ of 54 checklists Aug 22-31: 100 species on 5%+ of 92 checklists Sep 1-7: 103 species on 5%+ of 126 checklists Sep 8-14: 108 species on 5%+ of 98 checklists Sep 15-21: 93 species on 5%+ of 87 checklists Sep 22-30: 94 species on 5%+ of 91 checklists Oct 1-7: 82 species on 5%+ of 64 checklists Oct 8-14: 81 species on 5%+ of 71 checklists Oct 15-21: 82 species on 5%+ of 52 checklists Oct 22-31: 84 species on 5%+ of 69 checklists Nov 1-7: 71 species on 5%+ of 42 checklists Nov 8-14: 59 species on 5%+ of 42 checklists Nov 15-21: 65 species on 5%+ of 26 checklists Nov 22-30: 66 species on 5%+ of 42 checklists Dec 1-7: 63 species on 5%+ of 34 checklists Dec 8-14: 71 species on 5%+ of 40 checklists Dec 15-21: 53 species on 5%+ of 42 checklists Dec 22-31: 61 species on 5%+ of 95 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 Bald Eagle 80% 2 Mallard 80% 3 Canada Goose 76% 4 Red-winged Blackbird 73% 5 Black-capped Chickadee 72% 6 Ring-billed Gull 72% 7 Red-tailed Hawk 71% 8 House Sparrow 69% 9 Blue Jay 67% 10 White-crowned Sparrow 66% 11 European Starling 66% 12 Cackling Goose 65% 13 Black-billed Magpie 64% 14 Northern Harrier 64% 15 Northern Shoveler 64% 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 .
Bald Eagle80%
Mallard80%
Canada Goose76%
Red-winged Blackbird73%
Black-capped Chickadee72%
Ring-billed Gull72%
Red-tailed Hawk71%
House Sparrow69%
Blue Jay67%
White-crowned Sparrow66%
European Starling66%
Cackling Goose65%
Black-billed Magpie64%
Northern Shoveler64%