Birding spot · San Francisco County, California
Birding at Twin Peaks Reservoir: What You'll See Each Week In November, the birds most often reported at Twin Peaks Reservoir are Song Sparrow (88%), White-crowned Sparrow (88%), and Anna's Hummingbird (86%). It is busiest in spring, when 64 species turn up on at least 1 in 20 checklists, and species counts peak in mid April (67 species). 137 species have been reported here across 2,067 complete checklists from 318 birders.
Species by week 0 20 40 60 80 Jan 1-7: 50 species on 5%+ of 15 checklists Jan 8-14: 35 species on 5%+ of 21 checklists Jan 15-21: low data (6 checklists) Jan 22-31: 45 species on 5%+ of 31 checklists Feb 1-7: 39 species on 5%+ of 11 checklists Feb 8-14: 40 species on 5%+ of 13 checklists Feb 15-21: 43 species on 5%+ of 12 checklists Feb 22-28: 37 species on 5%+ of 21 checklists Mar 1-7: 53 species on 5%+ of 18 checklists Mar 8-14: 45 species on 5%+ of 14 checklists Mar 15-21: 47 species on 5%+ of 23 checklists Mar 22-31: 50 species on 5%+ of 85 checklists Apr 1-7: 48 species on 5%+ of 62 checklists Apr 8-14: 53 species on 5%+ of 67 checklists Apr 15-21: 67 species on 5%+ of 82 checklists Apr 22-30: 65 species on 5%+ of 151 checklists May 1-7: 57 species on 5%+ of 127 checklists May 8-14: 59 species on 5%+ of 157 checklists May 15-21: 53 species on 5%+ of 94 checklists May 22-31: 52 species on 5%+ of 78 checklists Jun 1-7: 49 species on 5%+ of 57 checklists Jun 8-14: 43 species on 5%+ of 30 checklists Jun 15-21: 37 species on 5%+ of 27 checklists Jun 22-30: 42 species on 5%+ of 34 checklists Jul 1-7: low data (9 checklists) Jul 8-14: 48 species on 5%+ of 19 checklists Jul 15-21: 49 species on 5%+ of 18 checklists Jul 22-31: 38 species on 5%+ of 27 checklists Aug 1-7: 42 species on 5%+ of 28 checklists Aug 8-14: 52 species on 5%+ of 39 checklists Aug 15-21: 49 species on 5%+ of 54 checklists Aug 22-31: 52 species on 5%+ of 72 checklists Sep 1-7: 52 species on 5%+ of 66 checklists Sep 8-14: 54 species on 5%+ of 41 checklists Sep 15-21: 58 species on 5%+ of 51 checklists Sep 22-30: 61 species on 5%+ of 64 checklists Oct 1-7: 63 species on 5%+ of 23 checklists Oct 8-14: 60 species on 5%+ of 40 checklists Oct 15-21: 55 species on 5%+ of 55 checklists Oct 22-31: 58 species on 5%+ of 51 checklists Nov 1-7: 51 species on 5%+ of 23 checklists Nov 8-14: 48 species on 5%+ of 25 checklists Nov 15-21: 47 species on 5%+ of 21 checklists Nov 22-30: 41 species on 5%+ of 22 checklists Dec 1-7: 44 species on 5%+ of 29 checklists Dec 8-14: low data (8 checklists) Dec 15-21: 42 species on 5%+ of 13 checklists Dec 22-31: 46 species on 5%+ of 33 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 Song Sparrow 88% 2 White-crowned Sparrow 88% 3 Anna's Hummingbird 86% 4 Fox Sparrow 84% 5 Ruby-crowned Kinglet 78% 6 Golden-crowned Sparrow 76% 7 Common Raven 73% 8 Dark-eyed Junco 70% 9 Black Phoebe 69% 10 Hermit Thrush 69% 11 Pacific Wren 68% 12 California Scrub-Jay 65% 13 Yellow-rumped Warbler 65% 14 House Finch 64% 15 Chestnut-backed Chickadee 63% 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 .
Song Sparrow88%
White-crowned Sparrow88%
Anna's Hummingbird86%
Fox Sparrow84%
Ruby-crowned Kinglet78%
Golden-crowned Sparrow76%
Common Raven73%
Dark-eyed Junco70%
Black Phoebe69%
Hermit Thrush69%
Pacific Wren68%
California Scrub-Jay65%
Yellow-rumped Warbler65%
House Finch64%
Chestnut-backed Chickadee63%