Birding spot · Alameda County, California
Birding at Don Castro Regional Recreation Area: What You'll See Each Week In November, the birds most often reported at Don Castro Regional Recreation Area are Mallard (72%), Ruby-crowned Kinglet (67%), and Northern Flicker (65%). It is busiest in spring, when 77 species turn up on at least 1 in 20 checklists, and species counts peak in the second week of April (72 species). 133 species have been reported here across 1,087 complete checklists from 151 birders.
Species by week 0 20 40 60 80 Jan 1-7: 67 species on 5%+ of 20 checklists Jan 8-14: 66 species on 5%+ of 17 checklists Jan 15-21: 59 species on 5%+ of 22 checklists Jan 22-31: 53 species on 5%+ of 23 checklists Feb 1-7: 61 species on 5%+ of 27 checklists Feb 8-14: 54 species on 5%+ of 24 checklists Feb 15-21: 53 species on 5%+ of 27 checklists Feb 22-28: 65 species on 5%+ of 26 checklists Mar 1-7: 69 species on 5%+ of 32 checklists Mar 8-14: 70 species on 5%+ of 16 checklists Mar 15-21: 67 species on 5%+ of 30 checklists Mar 22-31: 66 species on 5%+ of 35 checklists Apr 1-7: 66 species on 5%+ of 32 checklists Apr 8-14: 72 species on 5%+ of 18 checklists Apr 15-21: 67 species on 5%+ of 27 checklists Apr 22-30: 67 species on 5%+ of 66 checklists May 1-7: 69 species on 5%+ of 37 checklists May 8-14: 64 species on 5%+ of 28 checklists May 15-21: 67 species on 5%+ of 26 checklists May 22-31: 61 species on 5%+ of 28 checklists Jun 1-7: 66 species on 5%+ of 16 checklists Jun 8-14: 57 species on 5%+ of 12 checklists Jun 15-21: 60 species on 5%+ of 13 checklists Jun 22-30: 72 species on 5%+ of 20 checklists Jul 1-7: 71 species on 5%+ of 18 checklists Jul 8-14: 63 species on 5%+ of 15 checklists Jul 15-21: low data (5 checklists) Jul 22-31: 53 species on 5%+ of 12 checklists Aug 1-7: 44 species on 5%+ of 10 checklists Aug 8-14: 54 species on 5%+ of 10 checklists Aug 15-21: 64 species on 5%+ of 13 checklists Aug 22-31: 41 species on 5%+ of 22 checklists Sep 1-7: 52 species on 5%+ of 15 checklists Sep 8-14: 58 species on 5%+ of 13 checklists Sep 15-21: 60 species on 5%+ of 20 checklists Sep 22-30: 54 species on 5%+ of 24 checklists Oct 1-7: 54 species on 5%+ of 17 checklists Oct 8-14: 54 species on 5%+ of 25 checklists Oct 15-21: 52 species on 5%+ of 11 checklists Oct 22-31: 56 species on 5%+ of 49 checklists Nov 1-7: 53 species on 5%+ of 18 checklists Nov 8-14: 52 species on 5%+ of 26 checklists Nov 15-21: 59 species on 5%+ of 17 checklists Nov 22-30: 55 species on 5%+ of 28 checklists Dec 1-7: 68 species on 5%+ of 17 checklists Dec 8-14: 60 species on 5%+ of 18 checklists Dec 15-21: 61 species on 5%+ of 31 checklists Dec 22-31: 66 species on 5%+ of 31 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 Mallard 72% 2 Ruby-crowned Kinglet 67% 3 Northern Flicker 65% 4 Oak Titmouse 65% 5 Black Phoebe 62% 6 Yellow-rumped Warbler 62% 7 Dark-eyed Junco 61% 8 Steller's Jay 55% 9 California Towhee 52% 10 Hermit Thrush 52% 11 Nuttall's Woodpecker 48% 12 Spotted Towhee 48% 13 Anna's Hummingbird 45% 14 White-crowned Sparrow 45% 15 California Scrub-Jay 44% 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 .
Mallard72%
Ruby-crowned Kinglet67%
Northern Flicker65%
Oak Titmouse65%
Black Phoebe62%
Yellow-rumped Warbler62%
Dark-eyed Junco61%
Steller's Jay55%
California Towhee52%
Hermit Thrush52%
Nuttall's Woodpecker48%
Spotted Towhee48%
Anna's Hummingbird45%
White-crowned Sparrow45%
California Scrub-Jay44%