Birding spot · Larimer County, Colorado
Birding at Dorsey Lake: What You'll See Each Week In November, the birds most often reported at Dorsey Lake are American Crow (77%), Steller's Jay (76%), and Black-billed Magpie (75%). It is busiest in summer, when 49 species turn up on at least 1 in 20 checklists, and species counts peak in the second week of June (56 species). 121 species have been reported here across 1,755 complete checklists from 975 birders.
Species by week 0 20 40 60 Jan 1-7: 23 species on 5%+ of 13 checklists Jan 8-14: low data (2 checklists) Jan 15-21: low data (3 checklists) Jan 22-31: low data (3 checklists) Feb 1-7: low data (5 checklists) Feb 8-14: low data (5 checklists) Feb 15-21: low data (8 checklists) Feb 22-28: low data (7 checklists) Mar 1-7: low data (6 checklists) Mar 8-14: low data (6 checklists) Mar 15-21: low data (4 checklists) Mar 22-31: low data (7 checklists) Apr 1-7: low data (4 checklists) Apr 8-14: 34 species on 5%+ of 14 checklists Apr 15-21: low data (7 checklists) Apr 22-30: low data (4 checklists) May 1-7: low data (9 checklists) May 8-14: 47 species on 5%+ of 35 checklists May 15-21: 50 species on 5%+ of 42 checklists May 22-31: 41 species on 5%+ of 28 checklists Jun 1-7: 44 species on 5%+ of 52 checklists Jun 8-14: 56 species on 5%+ of 37 checklists Jun 15-21: 48 species on 5%+ of 57 checklists Jun 22-30: 45 species on 5%+ of 59 checklists Jul 1-7: 45 species on 5%+ of 66 checklists Jul 8-14: 48 species on 5%+ of 47 checklists Jul 15-21: 49 species on 5%+ of 91 checklists Jul 22-31: 47 species on 5%+ of 155 checklists Aug 1-7: 43 species on 5%+ of 52 checklists Aug 8-14: 54 species on 5%+ of 32 checklists Aug 15-21: 49 species on 5%+ of 44 checklists Aug 22-31: 51 species on 5%+ of 38 checklists Sep 1-7: 46 species on 5%+ of 25 checklists Sep 8-14: 30 species on 5%+ of 21 checklists Sep 15-21: 35 species on 5%+ of 36 checklists Sep 22-30: 33 species on 5%+ of 66 checklists Oct 1-7: 31 species on 5%+ of 463 checklists Oct 8-14: 37 species on 5%+ of 16 checklists Oct 15-21: 33 species on 5%+ of 13 checklists Oct 22-31: 32 species on 5%+ of 16 checklists Nov 1-7: 27 species on 5%+ of 119 checklists Nov 8-14: 25 species on 5%+ of 11 checklists Nov 15-21: low data (4 checklists) Nov 22-30: low data (7 checklists) Dec 1-7: low data (5 checklists) Dec 8-14: low data (1 checklists) Dec 15-21: low data (4 checklists) Dec 22-31: low data (6 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 American Crow 77% 2 Steller's Jay 76% 3 Black-billed Magpie 75% 4 Pygmy Nuthatch 73% 5 Mountain Chickadee 69% 6 Dark-eyed Junco 67% 7 Hairy Woodpecker 57% 8 White-breasted Nuthatch 45% 9 Clark's Nutcracker 39% 10 Common Raven 37% 11 House Finch 33% 12 Black-capped Chickadee 30% 13 Red-breasted Nuthatch 21% 14 Red Crossbill 15% 15 Northern Flicker 14% 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 .
American Crow77%
Steller's Jay76%
Black-billed Magpie75%
Pygmy Nuthatch73%
Mountain Chickadee69%
Dark-eyed Junco67%
Hairy Woodpecker57%
White-breasted Nuthatch45%
Clark's Nutcracker39%
Common Raven37%
House Finch33%
Black-capped Chickadee30%
Red-breasted Nuthatch21%
Red Crossbill15%
Northern Flicker14%