Birding spot · Boulder County, Colorado
Birding at Heatherwood Trail: What You'll See Each Week In November, the birds most often reported at Heatherwood Trail are Black-capped Chickadee (86%), Mallard (86%), and Rock Pigeon (77%). It is busiest in spring, when 56 species turn up on at least 1 in 20 checklists, and species counts peak in mid May (60 species). 141 species have been reported here across 1,991 complete checklists from 439 birders.
Species by week 0 20 40 60 Jan 1-7: 44 species on 5%+ of 102 checklists Jan 8-14: 45 species on 5%+ of 80 checklists Jan 15-21: 42 species on 5%+ of 78 checklists Jan 22-31: 45 species on 5%+ of 147 checklists Feb 1-7: 43 species on 5%+ of 59 checklists Feb 8-14: 44 species on 5%+ of 49 checklists Feb 15-21: 38 species on 5%+ of 59 checklists Feb 22-28: 40 species on 5%+ of 64 checklists Mar 1-7: 40 species on 5%+ of 47 checklists Mar 8-14: 33 species on 5%+ of 51 checklists Mar 15-21: 35 species on 5%+ of 44 checklists Mar 22-31: 44 species on 5%+ of 100 checklists Apr 1-7: 42 species on 5%+ of 113 checklists Apr 8-14: 43 species on 5%+ of 123 checklists Apr 15-21: 54 species on 5%+ of 80 checklists Apr 22-30: 50 species on 5%+ of 80 checklists May 1-7: 53 species on 5%+ of 48 checklists May 8-14: 58 species on 5%+ of 47 checklists May 15-21: 60 species on 5%+ of 33 checklists May 22-31: 59 species on 5%+ of 53 checklists Jun 1-7: 50 species on 5%+ of 18 checklists Jun 8-14: 53 species on 5%+ of 15 checklists Jun 15-21: 55 species on 5%+ of 13 checklists Jun 22-30: 56 species on 5%+ of 14 checklists Jul 1-7: 52 species on 5%+ of 14 checklists Jul 8-14: 46 species on 5%+ of 17 checklists Jul 15-21: 44 species on 5%+ of 12 checklists Jul 22-31: 60 species on 5%+ of 17 checklists Aug 1-7: 48 species on 5%+ of 14 checklists Aug 8-14: 48 species on 5%+ of 12 checklists Aug 15-21: 45 species on 5%+ of 17 checklists Aug 22-31: 46 species on 5%+ of 10 checklists Sep 1-7: 40 species on 5%+ of 14 checklists Sep 8-14: 47 species on 5%+ of 16 checklists Sep 15-21: low data (9 checklists) Sep 22-30: 47 species on 5%+ of 14 checklists Oct 1-7: 60 species on 5%+ of 14 checklists Oct 8-14: 40 species on 5%+ of 17 checklists Oct 15-21: 45 species on 5%+ of 16 checklists Oct 22-31: 47 species on 5%+ of 18 checklists Nov 1-7: 34 species on 5%+ of 21 checklists Nov 8-14: 36 species on 5%+ of 16 checklists Nov 15-21: 47 species on 5%+ of 15 checklists Nov 22-30: 45 species on 5%+ of 27 checklists Dec 1-7: 41 species on 5%+ of 44 checklists Dec 8-14: 47 species on 5%+ of 38 checklists Dec 15-21: 41 species on 5%+ of 33 checklists Dec 22-31: 41 species on 5%+ of 49 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-capped Chickadee 86% 2 Mallard 86% 3 Rock Pigeon 77% 4 Northern Flicker 73% 5 Blue Jay 72% 6 Belted Kingfisher 63% 7 House Finch 63% 8 European Starling 58% 9 Red-tailed Hawk 57% 10 Song Sparrow 57% 11 Red-winged Blackbird 53% 12 White-breasted Nuthatch 49% 13 American Robin 44% 14 American Goldfinch 42% 15 Ring-billed Gull 39% 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-capped Chickadee86%
Mallard86%
Rock Pigeon77%
Northern Flicker73%
Blue Jay72%
Belted Kingfisher63%
House Finch63%
European Starling58%
Red-tailed Hawk57%
Song Sparrow57%
Red-winged Blackbird53%
White-breasted Nuthatch49%
American Robin44%
American Goldfinch42%
Ring-billed Gull39%