Birding spot · Colusa County, California
Birding at Colusa National Wildlife Refuge: What You'll See Each Week In November, the birds most often reported at Colusa National Wildlife Refuge are Greater White-fronted Goose (97%), Northern Pintail (96%), and Northern Shoveler (92%). It is busiest in spring, when 103 species turn up on at least 1 in 20 checklists, and species counts peak in the second week of April (108 species). 180 species have been reported here across 1,370 complete checklists from 734 birders.
Species by week 0 25 50 75 100 125 Jan 1-7: 86 species on 5%+ of 77 checklists Jan 8-14: 85 species on 5%+ of 45 checklists Jan 15-21: 80 species on 5%+ of 57 checklists Jan 22-31: 77 species on 5%+ of 71 checklists Feb 1-7: 88 species on 5%+ of 55 checklists Feb 8-14: 82 species on 5%+ of 34 checklists Feb 15-21: 88 species on 5%+ of 39 checklists Feb 22-28: 94 species on 5%+ of 35 checklists Mar 1-7: 84 species on 5%+ of 10 checklists Mar 8-14: 100 species on 5%+ of 14 checklists Mar 15-21: 91 species on 5%+ of 27 checklists Mar 22-31: 89 species on 5%+ of 22 checklists Apr 1-7: 96 species on 5%+ of 24 checklists Apr 8-14: 108 species on 5%+ of 13 checklists Apr 15-21: 93 species on 5%+ of 23 checklists Apr 22-30: 102 species on 5%+ of 33 checklists May 1-7: 103 species on 5%+ of 12 checklists May 8-14: 106 species on 5%+ of 19 checklists May 15-21: 87 species on 5%+ of 16 checklists May 22-31: 67 species on 5%+ of 22 checklists Jun 1-7: low data (6 checklists) Jun 8-14: 66 species on 5%+ of 11 checklists Jun 15-21: low data (5 checklists) Jun 22-30: 61 species on 5%+ of 14 checklists Jul 1-7: low data (6 checklists) Jul 8-14: low data (6 checklists) Jul 15-21: 63 species on 5%+ of 10 checklists Jul 22-31: low data (5 checklists) Aug 1-7: 83 species on 5%+ of 12 checklists Aug 8-14: 78 species on 5%+ of 12 checklists Aug 15-21: 62 species on 5%+ of 10 checklists Aug 22-31: 81 species on 5%+ of 17 checklists Sep 1-7: 78 species on 5%+ of 14 checklists Sep 8-14: low data (9 checklists) Sep 15-21: 71 species on 5%+ of 11 checklists Sep 22-30: 73 species on 5%+ of 22 checklists Oct 1-7: 95 species on 5%+ of 18 checklists Oct 8-14: 97 species on 5%+ of 19 checklists Oct 15-21: 81 species on 5%+ of 21 checklists Oct 22-31: 99 species on 5%+ of 40 checklists Nov 1-7: 90 species on 5%+ of 49 checklists Nov 8-14: 85 species on 5%+ of 48 checklists Nov 15-21: 92 species on 5%+ of 64 checklists Nov 22-30: 88 species on 5%+ of 95 checklists Dec 1-7: 88 species on 5%+ of 49 checklists Dec 8-14: 88 species on 5%+ of 40 checklists Dec 15-21: 77 species on 5%+ of 43 checklists Dec 22-31: 79 species on 5%+ of 66 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 Greater White-fronted Goose 97% 2 Northern Pintail 96% 3 Northern Shoveler 92% 4 Gadwall 90% 5 Red-winged Blackbird 90% 6 American Coot 88% 7 Great Egret 87% 8 Black Phoebe 86% 9 American Wigeon 84% 10 Mallard 84% 11 Red-tailed Hawk 80% 12 Turkey Vulture 80% 13 Snow Goose 78% 14 Great Blue Heron 76% 15 Killdeer 74% 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 California.
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 .
Greater White-fronted Goose97%
Northern Pintail96%
Northern Shoveler92%
Gadwall90%
Red-winged Blackbird90%
American Coot88%
Great Egret87%
Black Phoebe86%
American Wigeon84%
Mallard84%
Red-tailed Hawk80%
Turkey Vulture80%
Snow Goose78%
Great Blue Heron76%
Killdeer74%