Birding spot · Marin County, California
Birding at Nicasio Reservoir: What You'll See Each Week In November, the birds most often reported at Nicasio Reservoir are Canada Goose (83%), American Crow (83%), and Turkey Vulture (80%). It is busiest in fall, when 67 species turn up on at least 1 in 20 checklists, and species counts peak in late December (78 species). 169 species have been reported here across 2,050 complete checklists from 142 birders.
Species by week 0 20 40 60 80 Jan 1-7: 50 species on 5%+ of 23 checklists Jan 8-14: 56 species on 5%+ of 41 checklists Jan 15-21: 66 species on 5%+ of 37 checklists Jan 22-31: 57 species on 5%+ of 61 checklists Feb 1-7: 52 species on 5%+ of 24 checklists Feb 8-14: 58 species on 5%+ of 30 checklists Feb 15-21: 54 species on 5%+ of 30 checklists Feb 22-28: 60 species on 5%+ of 34 checklists Mar 1-7: 57 species on 5%+ of 33 checklists Mar 8-14: 58 species on 5%+ of 37 checklists Mar 15-21: 61 species on 5%+ of 34 checklists Mar 22-31: 63 species on 5%+ of 50 checklists Apr 1-7: 57 species on 5%+ of 29 checklists Apr 8-14: 60 species on 5%+ of 36 checklists Apr 15-21: 61 species on 5%+ of 31 checklists Apr 22-30: 48 species on 5%+ of 42 checklists May 1-7: 52 species on 5%+ of 30 checklists May 8-14: 47 species on 5%+ of 22 checklists May 15-21: 55 species on 5%+ of 20 checklists May 22-31: 51 species on 5%+ of 34 checklists Jun 1-7: 55 species on 5%+ of 20 checklists Jun 8-14: 48 species on 5%+ of 27 checklists Jun 15-21: 49 species on 5%+ of 28 checklists Jun 22-30: 49 species on 5%+ of 34 checklists Jul 1-7: 49 species on 5%+ of 30 checklists Jul 8-14: 58 species on 5%+ of 31 checklists Jul 15-21: 50 species on 5%+ of 30 checklists Jul 22-31: 53 species on 5%+ of 77 checklists Aug 1-7: 58 species on 5%+ of 36 checklists Aug 8-14: 53 species on 5%+ of 46 checklists Aug 15-21: 54 species on 5%+ of 46 checklists Aug 22-31: 54 species on 5%+ of 111 checklists Sep 1-7: 60 species on 5%+ of 74 checklists Sep 8-14: 59 species on 5%+ of 38 checklists Sep 15-21: 65 species on 5%+ of 40 checklists Sep 22-30: 63 species on 5%+ of 80 checklists Oct 1-7: 71 species on 5%+ of 59 checklists Oct 8-14: 59 species on 5%+ of 75 checklists Oct 15-21: 63 species on 5%+ of 36 checklists Oct 22-31: 73 species on 5%+ of 72 checklists Nov 1-7: 64 species on 5%+ of 49 checklists Nov 8-14: 61 species on 5%+ of 62 checklists Nov 15-21: 67 species on 5%+ of 58 checklists Nov 22-30: 69 species on 5%+ of 49 checklists Dec 1-7: 75 species on 5%+ of 40 checklists Dec 8-14: 67 species on 5%+ of 54 checklists Dec 15-21: 68 species on 5%+ of 53 checklists Dec 22-31: 78 species on 5%+ of 17 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 Canada Goose 83% 2 American Crow 83% 3 Turkey Vulture 80% 4 Red-tailed Hawk 69% 5 Double-crested Cormorant 68% 6 Black Phoebe 67% 7 Common Raven 65% 8 California Scrub-Jay 58% 9 Mallard 53% 10 Great Blue Heron 52% 11 Yellow-rumped Warbler 49% 12 American Kestrel 44% 13 Great Egret 44% 14 Say's Phoebe 43% 15 American Pipit 42% 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 .
Canada Goose83%
American Crow83%
Turkey Vulture80%
Red-tailed Hawk69%
Double-crested Cormorant68%
Black Phoebe67%
Common Raven65%
California Scrub-Jay58%
Mallard53%
Great Blue Heron52%
Yellow-rumped Warbler49%
American Kestrel44%
Great Egret44%
Say's Phoebe43%
American Pipit42%