Birding spot · Island County, Washington
Birding at Fort Casey (Keystone Spit): What You'll See Each Week In November, the birds most often reported at Fort Casey (Keystone Spit) are Double-crested Cormorant (77%), Pelagic Cormorant (62%), and Great Blue Heron (59%). It is busiest in fall, when 48 species turn up on at least 1 in 20 checklists, and species counts peak in mid October (64 species). 143 species have been reported here across 1,168 complete checklists from 623 birders.
Species by week 0 20 40 60 80 Jan 1-7: 51 species on 5%+ of 20 checklists Jan 8-14: 53 species on 5%+ of 17 checklists Jan 15-21: 51 species on 5%+ of 16 checklists Jan 22-31: 52 species on 5%+ of 19 checklists Feb 1-7: 41 species on 5%+ of 30 checklists Feb 8-14: 47 species on 5%+ of 19 checklists Feb 15-21: 37 species on 5%+ of 29 checklists Feb 22-28: 44 species on 5%+ of 18 checklists Mar 1-7: 42 species on 5%+ of 25 checklists Mar 8-14: 33 species on 5%+ of 23 checklists Mar 15-21: 51 species on 5%+ of 20 checklists Mar 22-31: 50 species on 5%+ of 16 checklists Apr 1-7: 61 species on 5%+ of 20 checklists Apr 8-14: 39 species on 5%+ of 23 checklists Apr 15-21: 53 species on 5%+ of 20 checklists Apr 22-30: 43 species on 5%+ of 24 checklists May 1-7: 40 species on 5%+ of 25 checklists May 8-14: 63 species on 5%+ of 19 checklists May 15-21: 63 species on 5%+ of 13 checklists May 22-31: 45 species on 5%+ of 27 checklists Jun 1-7: 62 species on 5%+ of 17 checklists Jun 8-14: 46 species on 5%+ of 15 checklists Jun 15-21: 36 species on 5%+ of 25 checklists Jun 22-30: 35 species on 5%+ of 27 checklists Jul 1-7: 50 species on 5%+ of 17 checklists Jul 8-14: 36 species on 5%+ of 43 checklists Jul 15-21: 49 species on 5%+ of 40 checklists Jul 22-31: 35 species on 5%+ of 56 checklists Aug 1-7: 35 species on 5%+ of 47 checklists Aug 8-14: 31 species on 5%+ of 48 checklists Aug 15-21: 32 species on 5%+ of 38 checklists Aug 22-31: 47 species on 5%+ of 35 checklists Sep 1-7: 29 species on 5%+ of 31 checklists Sep 8-14: 33 species on 5%+ of 23 checklists Sep 15-21: 33 species on 5%+ of 21 checklists Sep 22-30: 59 species on 5%+ of 17 checklists Oct 1-7: 58 species on 5%+ of 16 checklists Oct 8-14: 34 species on 5%+ of 24 checklists Oct 15-21: 64 species on 5%+ of 15 checklists Oct 22-31: 40 species on 5%+ of 25 checklists Nov 1-7: 42 species on 5%+ of 10 checklists Nov 8-14: 60 species on 5%+ of 11 checklists Nov 15-21: 44 species on 5%+ of 27 checklists Nov 22-30: 46 species on 5%+ of 33 checklists Dec 1-7: 54 species on 5%+ of 18 checklists Dec 8-14: 59 species on 5%+ of 18 checklists Dec 15-21: 56 species on 5%+ of 13 checklists Dec 22-31: 61 species on 5%+ of 35 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 Double-crested Cormorant 77% 2 Pelagic Cormorant 62% 3 Great Blue Heron 59% 4 Glaucous-winged Gull 42% 5 Pigeon Guillemot 42% 6 Common Loon 41% 7 Bald Eagle 40% 8 American Crow 35% 9 Belted Kingfisher 35% 10 Horned Grebe 35% 11 Red-breasted Merganser 32% 12 Bonaparte's Gull 28% 13 Great Egret 27% 14 Brewer's Blackbird 26% 15 Killdeer 23% 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 Washington.
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 .
Double-crested Cormorant77%
Pelagic Cormorant62%
Great Blue Heron59%
Glaucous-winged Gull42%
Pigeon Guillemot42%
Common Loon41%
Bald Eagle40%
American Crow35%
Belted Kingfisher35%
Horned Grebe35%
Red-breasted Merganser32%
Bonaparte's Gull28%
Great Egret27%
Brewer's Blackbird26%
Killdeer23%