Birding spot · Boulder County, Colorado
Birding at Greenlee Wildlife Preserve Open Space: What You'll See Each Week In November, the birds most often reported at Greenlee Wildlife Preserve Open Space are Red-winged Blackbird (82%), White-crowned Sparrow (82%), and Black-capped Chickadee (81%). It is busiest in spring, when 59 species turn up on at least 1 in 20 checklists, and species counts peak in early May (59 species). 114 species have been reported here across 800 complete checklists from 160 birders.
Species by week 0 20 40 60 Jan 1-7: 29 species on 5%+ of 13 checklists Jan 8-14: 29 species on 5%+ of 15 checklists Jan 15-21: 33 species on 5%+ of 13 checklists Jan 22-31: 33 species on 5%+ of 14 checklists Feb 1-7: 38 species on 5%+ of 25 checklists Feb 8-14: low data (4 checklists) Feb 15-21: 33 species on 5%+ of 10 checklists Feb 22-28: 42 species on 5%+ of 10 checklists Mar 1-7: 43 species on 5%+ of 12 checklists Mar 8-14: 37 species on 5%+ of 13 checklists Mar 15-21: 46 species on 5%+ of 12 checklists Mar 22-31: 42 species on 5%+ of 14 checklists Apr 1-7: 45 species on 5%+ of 22 checklists Apr 8-14: 44 species on 5%+ of 22 checklists Apr 15-21: 54 species on 5%+ of 16 checklists Apr 22-30: 50 species on 5%+ of 26 checklists May 1-7: 59 species on 5%+ of 28 checklists May 8-14: 57 species on 5%+ of 10 checklists May 15-21: 46 species on 5%+ of 13 checklists May 22-31: 50 species on 5%+ of 11 checklists Jun 1-7: low data (6 checklists) Jun 8-14: 37 species on 5%+ of 13 checklists Jun 15-21: 48 species on 5%+ of 10 checklists Jun 22-30: 40 species on 5%+ of 14 checklists Jul 1-7: 45 species on 5%+ of 14 checklists Jul 8-14: 42 species on 5%+ of 13 checklists Jul 15-21: low data (9 checklists) Jul 22-31: 36 species on 5%+ of 23 checklists Aug 1-7: 40 species on 5%+ of 30 checklists Aug 8-14: 40 species on 5%+ of 23 checklists Aug 15-21: 42 species on 5%+ of 31 checklists Aug 22-31: 43 species on 5%+ of 31 checklists Sep 1-7: 50 species on 5%+ of 20 checklists Sep 8-14: 37 species on 5%+ of 21 checklists Sep 15-21: 54 species on 5%+ of 17 checklists Sep 22-30: 46 species on 5%+ of 30 checklists Oct 1-7: 49 species on 5%+ of 16 checklists Oct 8-14: low data (7 checklists) Oct 15-21: 40 species on 5%+ of 16 checklists Oct 22-31: 45 species on 5%+ of 37 checklists Nov 1-7: 40 species on 5%+ of 17 checklists Nov 8-14: 42 species on 5%+ of 20 checklists Nov 15-21: 44 species on 5%+ of 14 checklists Nov 22-30: 40 species on 5%+ of 17 checklists Dec 1-7: 34 species on 5%+ of 11 checklists Dec 8-14: low data (8 checklists) Dec 15-21: 34 species on 5%+ of 10 checklists Dec 22-31: 45 species on 5%+ of 19 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 Red-winged Blackbird 82% 2 White-crowned Sparrow 82% 3 Black-capped Chickadee 81% 4 House Finch 74% 5 Black-billed Magpie 69% 6 Mallard 69% 7 Northern Flicker 68% 8 European Starling 60% 9 Blue Jay 57% 10 Spotted Towhee 56% 11 American Robin 54% 12 Gadwall 51% 13 American Wigeon 47% 14 Canada Goose 47% 15 House Sparrow 43% 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 .
Red-winged Blackbird82%
White-crowned Sparrow82%
Black-capped Chickadee81%
House Finch74%
Black-billed Magpie69%
Mallard69%
Northern Flicker68%
European Starling60%
Blue Jay57%
Spotted Towhee56%
American Robin54%
Gadwall51%
American Wigeon47%
Canada Goose47%
House Sparrow43%