Birding spot · El Paso County, Colorado
Birding at Big Johnson Reservoir: What You'll See Each Week In November, the birds most often reported at Big Johnson Reservoir are Ring-billed Gull (85%), Bufflehead (84%), and Canada Goose (84%). It is busiest in summer, when 77 species turn up on at least 1 in 20 checklists, and species counts peak in mid August (82 species). 212 species have been reported here across 3,338 complete checklists from 824 birders.
Species by week 0 20 40 60 80 100 Jan 1-7: 42 species on 5%+ of 99 checklists Jan 8-14: 46 species on 5%+ of 58 checklists Jan 15-21: 36 species on 5%+ of 46 checklists Jan 22-31: 39 species on 5%+ of 61 checklists Feb 1-7: 44 species on 5%+ of 55 checklists Feb 8-14: 37 species on 5%+ of 25 checklists Feb 15-21: 45 species on 5%+ of 42 checklists Feb 22-28: 44 species on 5%+ of 42 checklists Mar 1-7: 41 species on 5%+ of 67 checklists Mar 8-14: 51 species on 5%+ of 50 checklists Mar 15-21: 48 species on 5%+ of 45 checklists Mar 22-31: 50 species on 5%+ of 76 checklists Apr 1-7: 52 species on 5%+ of 87 checklists Apr 8-14: 66 species on 5%+ of 146 checklists Apr 15-21: 78 species on 5%+ of 120 checklists Apr 22-30: 79 species on 5%+ of 112 checklists May 1-7: 76 species on 5%+ of 147 checklists May 8-14: 77 species on 5%+ of 139 checklists May 15-21: 71 species on 5%+ of 90 checklists May 22-31: 79 species on 5%+ of 99 checklists Jun 1-7: 65 species on 5%+ of 208 checklists Jun 8-14: 59 species on 5%+ of 45 checklists Jun 15-21: 64 species on 5%+ of 42 checklists Jun 22-30: 69 species on 5%+ of 53 checklists Jul 1-7: 70 species on 5%+ of 46 checklists Jul 8-14: 60 species on 5%+ of 26 checklists Jul 15-21: 65 species on 5%+ of 35 checklists Jul 22-31: 68 species on 5%+ of 44 checklists Aug 1-7: 73 species on 5%+ of 50 checklists Aug 8-14: 76 species on 5%+ of 65 checklists Aug 15-21: 82 species on 5%+ of 93 checklists Aug 22-31: 82 species on 5%+ of 105 checklists Sep 1-7: 80 species on 5%+ of 78 checklists Sep 8-14: 67 species on 5%+ of 67 checklists Sep 15-21: 69 species on 5%+ of 59 checklists Sep 22-30: 65 species on 5%+ of 70 checklists Oct 1-7: 60 species on 5%+ of 48 checklists Oct 8-14: 59 species on 5%+ of 54 checklists Oct 15-21: 59 species on 5%+ of 58 checklists Oct 22-31: 66 species on 5%+ of 93 checklists Nov 1-7: 59 species on 5%+ of 45 checklists Nov 8-14: 56 species on 5%+ of 39 checklists Nov 15-21: 53 species on 5%+ of 37 checklists Nov 22-30: 54 species on 5%+ of 78 checklists Dec 1-7: 47 species on 5%+ of 64 checklists Dec 8-14: 52 species on 5%+ of 17 checklists Dec 15-21: 50 species on 5%+ of 52 checklists Dec 22-31: 39 species on 5%+ of 61 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 85% 2 Bufflehead 84% 3 Canada Goose 84% 4 Mallard 81% 5 Lesser Scaup 78% 6 Hooded Merganser 67% 7 Ruddy Duck 64% 8 Eared Grebe 64% 9 Green-winged Teal 58% 10 Canvasback 53% 11 Common Goldeneye 53% 12 American Wigeon 50% 13 Northern Pintail 50% 14 Cackling Goose 49% 15 American Coot 46% 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 Gull85%
Bufflehead84%
Canada Goose84%
Mallard81%
Lesser Scaup78%
Hooded Merganser67%
Ruddy Duck64%
Eared Grebe64%
Green-winged Teal58%
Canvasback53%
Common Goldeneye53%
American Wigeon50%
Northern Pintail50%
Cackling Goose49%
American Coot46%