Birding spot · Larimer County, Colorado
Birding at Arapaho Bend Natural Area: What You'll See Each Week In November, the birds most often reported at Arapaho Bend Natural Area are Ring-billed Gull (93%), Common Merganser (79%), and Common Goldeneye (72%). It is busiest in spring, when 88 species turn up on at least 1 in 20 checklists, and species counts peak in mid May (93 species). 216 species have been reported here across 2,443 complete checklists from 442 birders.
Species by week 0 20 40 60 80 100 Jan 1-7: 27 species on 5%+ of 22 checklists Jan 8-14: 32 species on 5%+ of 14 checklists Jan 15-21: 35 species on 5%+ of 12 checklists Jan 22-31: 25 species on 5%+ of 27 checklists Feb 1-7: 42 species on 5%+ of 18 checklists Feb 8-14: 27 species on 5%+ of 10 checklists Feb 15-21: 40 species on 5%+ of 25 checklists Feb 22-28: 30 species on 5%+ of 22 checklists Mar 1-7: 44 species on 5%+ of 31 checklists Mar 8-14: 42 species on 5%+ of 28 checklists Mar 15-21: 54 species on 5%+ of 57 checklists Mar 22-31: 61 species on 5%+ of 104 checklists Apr 1-7: 71 species on 5%+ of 116 checklists Apr 8-14: 77 species on 5%+ of 179 checklists Apr 15-21: 87 species on 5%+ of 168 checklists Apr 22-30: 86 species on 5%+ of 262 checklists May 1-7: 92 species on 5%+ of 156 checklists May 8-14: 91 species on 5%+ of 70 checklists May 15-21: 93 species on 5%+ of 28 checklists May 22-31: 71 species on 5%+ of 95 checklists Jun 1-7: 64 species on 5%+ of 17 checklists Jun 8-14: low data (8 checklists) Jun 15-21: low data (8 checklists) Jun 22-30: 61 species on 5%+ of 17 checklists Jul 1-7: 67 species on 5%+ of 16 checklists Jul 8-14: 67 species on 5%+ of 20 checklists Jul 15-21: 70 species on 5%+ of 20 checklists Jul 22-31: 59 species on 5%+ of 28 checklists Aug 1-7: 53 species on 5%+ of 27 checklists Aug 8-14: 55 species on 5%+ of 23 checklists Aug 15-21: 64 species on 5%+ of 26 checklists Aug 22-31: 61 species on 5%+ of 27 checklists Sep 1-7: 72 species on 5%+ of 19 checklists Sep 8-14: 54 species on 5%+ of 26 checklists Sep 15-21: 71 species on 5%+ of 29 checklists Sep 22-30: 72 species on 5%+ of 53 checklists Oct 1-7: 71 species on 5%+ of 34 checklists Oct 8-14: 56 species on 5%+ of 63 checklists Oct 15-21: 50 species on 5%+ of 119 checklists Oct 22-31: 59 species on 5%+ of 72 checklists Nov 1-7: 60 species on 5%+ of 50 checklists Nov 8-14: 55 species on 5%+ of 46 checklists Nov 15-21: 49 species on 5%+ of 79 checklists Nov 22-30: 47 species on 5%+ of 79 checklists Dec 1-7: 56 species on 5%+ of 36 checklists Dec 8-14: 44 species on 5%+ of 32 checklists Dec 15-21: low data (9 checklists) Dec 22-31: 38 species on 5%+ of 16 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 Ring-billed Gull 93% 2 Common Merganser 79% 3 Common Goldeneye 72% 4 Canada Goose 63% 5 American Herring Gull 54% 6 Red-winged Blackbird 54% 7 Western Grebe 51% 8 Song Sparrow 50% 9 Bald Eagle 49% 10 Mallard 47% 11 California Gull 40% 12 Black-capped Chickadee 35% 13 Red-tailed Hawk 33% 14 American Kestrel 33% 15 Cackling Goose 31% 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 .
Ring-billed Gull93%
Common Merganser79%
Common Goldeneye72%
Canada Goose63%
American Herring Gull54%
Red-winged Blackbird54%
Western Grebe51%
Song Sparrow50%
Bald Eagle49%
Mallard47%
California Gull40%
Black-capped Chickadee35%
Red-tailed Hawk33%
American Kestrel33%
Cackling Goose31%