Birding spot · Santa Clara County, California
Birding at Alviso Marina: What You'll See Each Week In November, the birds most often reported at Alviso Marina are Song Sparrow (78%), White-crowned Sparrow (78%), and Black-necked Stilt (70%). It is busiest in spring, when 80 species turn up on at least 1 in 20 checklists, and species counts peak in mid December (94 species). 157 species have been reported here across 1,372 complete checklists from 617 birders.
Species by week 0 20 40 60 80 100 Jan 1-7: 61 species on 5%+ of 44 checklists Jan 8-14: 65 species on 5%+ of 29 checklists Jan 15-21: 67 species on 5%+ of 49 checklists Jan 22-31: 78 species on 5%+ of 60 checklists Feb 1-7: 73 species on 5%+ of 21 checklists Feb 8-14: 77 species on 5%+ of 23 checklists Feb 15-21: 84 species on 5%+ of 38 checklists Feb 22-28: 79 species on 5%+ of 39 checklists Mar 1-7: 69 species on 5%+ of 30 checklists Mar 8-14: 88 species on 5%+ of 29 checklists Mar 15-21: 81 species on 5%+ of 32 checklists Mar 22-31: 73 species on 5%+ of 43 checklists Apr 1-7: 83 species on 5%+ of 25 checklists Apr 8-14: 69 species on 5%+ of 25 checklists Apr 15-21: 87 species on 5%+ of 19 checklists Apr 22-30: 65 species on 5%+ of 115 checklists May 1-7: 60 species on 5%+ of 62 checklists May 8-14: 53 species on 5%+ of 14 checklists May 15-21: 53 species on 5%+ of 17 checklists May 22-31: 42 species on 5%+ of 22 checklists Jun 1-7: low data (6 checklists) Jun 8-14: 45 species on 5%+ of 13 checklists Jun 15-21: 42 species on 5%+ of 14 checklists Jun 22-30: 61 species on 5%+ of 17 checklists Jul 1-7: 42 species on 5%+ of 24 checklists Jul 8-14: 51 species on 5%+ of 21 checklists Jul 15-21: 52 species on 5%+ of 26 checklists Jul 22-31: 62 species on 5%+ of 39 checklists Aug 1-7: 54 species on 5%+ of 51 checklists Aug 8-14: 54 species on 5%+ of 44 checklists Aug 15-21: 66 species on 5%+ of 32 checklists Aug 22-31: 61 species on 5%+ of 50 checklists Sep 1-7: 48 species on 5%+ of 23 checklists Sep 8-14: 59 species on 5%+ of 27 checklists Sep 15-21: 65 species on 5%+ of 27 checklists Sep 22-30: 80 species on 5%+ of 37 checklists Oct 1-7: 65 species on 5%+ of 24 checklists Oct 8-14: 68 species on 5%+ of 12 checklists Oct 15-21: 76 species on 5%+ of 20 checklists Oct 22-31: low data (8 checklists) Nov 1-7: 83 species on 5%+ of 10 checklists Nov 8-14: 61 species on 5%+ of 11 checklists Nov 15-21: low data (6 checklists) Nov 22-30: 83 species on 5%+ of 19 checklists Dec 1-7: 74 species on 5%+ of 12 checklists Dec 8-14: 68 species on 5%+ of 15 checklists Dec 15-21: 94 species on 5%+ of 19 checklists Dec 22-31: 63 species on 5%+ of 29 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 78% 2 White-crowned Sparrow 78% 3 Black-necked Stilt 70% 4 Black Phoebe 65% 5 American Coot 63% 6 Double-crested Cormorant 59% 7 Northern Shoveler 57% 8 Snowy Egret 57% 9 Common Yellowthroat 54% 10 Great Egret 54% 11 California Gull 50% 12 Golden-crowned Sparrow 50% 13 House Finch 48% 14 Least Sandpiper 48% 15 Marsh Wren 48% 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 Sparrow78%
White-crowned Sparrow78%
Black-necked Stilt70%
Black Phoebe65%
American Coot63%
Double-crested Cormorant59%
Northern Shoveler57%
Snowy Egret57%
Common Yellowthroat54%
Great Egret54%
California Gull50%
Golden-crowned Sparrow50%
House Finch48%
Least Sandpiper48%
Marsh Wren48%