Birding spot · Island County, Washington
Birding at Fort Casey: What You'll See Each Week In November, the birds most often reported at Fort Casey are Northern Harrier (74%), Great Blue Heron (69%), and American Wigeon (67%). It is busiest in fall, when 61 species turn up on at least 1 in 20 checklists, and species counts peak in the second week of May (74 species). 171 species have been reported here across 1,530 complete checklists from 548 birders.
Species by week 0 20 40 60 80 Jan 1-7: 56 species on 5%+ of 34 checklists Jan 8-14: 38 species on 5%+ of 25 checklists Jan 15-21: 66 species on 5%+ of 20 checklists Jan 22-31: 50 species on 5%+ of 49 checklists Feb 1-7: 44 species on 5%+ of 25 checklists Feb 8-14: 51 species on 5%+ of 16 checklists Feb 15-21: 48 species on 5%+ of 29 checklists Feb 22-28: 63 species on 5%+ of 15 checklists Mar 1-7: 61 species on 5%+ of 29 checklists Mar 8-14: 43 species on 5%+ of 29 checklists Mar 15-21: 54 species on 5%+ of 16 checklists Mar 22-31: 63 species on 5%+ of 14 checklists Apr 1-7: 63 species on 5%+ of 14 checklists Apr 8-14: 55 species on 5%+ of 10 checklists Apr 15-21: 59 species on 5%+ of 17 checklists Apr 22-30: 73 species on 5%+ of 19 checklists May 1-7: 54 species on 5%+ of 44 checklists May 8-14: 74 species on 5%+ of 17 checklists May 15-21: 53 species on 5%+ of 22 checklists May 22-31: low data (9 checklists) Jun 1-7: low data (6 checklists) Jun 8-14: low data (6 checklists) Jun 15-21: 35 species on 5%+ of 10 checklists Jun 22-30: 55 species on 5%+ of 15 checklists Jul 1-7: 52 species on 5%+ of 29 checklists Jul 8-14: 48 species on 5%+ of 100 checklists Jul 15-21: 52 species on 5%+ of 65 checklists Jul 22-31: 56 species on 5%+ of 92 checklists Aug 1-7: 49 species on 5%+ of 83 checklists Aug 8-14: 54 species on 5%+ of 53 checklists Aug 15-21: 44 species on 5%+ of 61 checklists Aug 22-31: 54 species on 5%+ of 81 checklists Sep 1-7: 50 species on 5%+ of 45 checklists Sep 8-14: 50 species on 5%+ of 29 checklists Sep 15-21: 61 species on 5%+ of 32 checklists Sep 22-30: 59 species on 5%+ of 27 checklists Oct 1-7: 48 species on 5%+ of 24 checklists Oct 8-14: 53 species on 5%+ of 45 checklists Oct 15-21: 64 species on 5%+ of 20 checklists Oct 22-31: 69 species on 5%+ of 40 checklists Nov 1-7: 59 species on 5%+ of 33 checklists Nov 8-14: 53 species on 5%+ of 29 checklists Nov 15-21: 62 species on 5%+ of 31 checklists Nov 22-30: 46 species on 5%+ of 27 checklists Dec 1-7: 56 species on 5%+ of 22 checklists Dec 8-14: 57 species on 5%+ of 25 checklists Dec 15-21: 61 species on 5%+ of 16 checklists Dec 22-31: 70 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 Northern Harrier 74% 2 Great Blue Heron 69% 3 American Wigeon 67% 4 Northern Pintail 59% 5 Mallard 58% 6 Bald Eagle 57% 7 Bufflehead 57% 8 Green-winged Teal 53% 9 Dunlin 50% 10 Gadwall 41% 11 Greater Yellowlegs 35% 12 Hooded Merganser 32% 13 Glaucous-winged Gull 29% 14 Red-breasted Merganser 29% 15 Short-eared Owl 28% 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 .
Great Blue Heron69%
American Wigeon67%
Northern Pintail59%
Mallard58%
Bald Eagle57%
Bufflehead57%
Green-winged Teal53%
Dunlin50%
Gadwall41%
Greater Yellowlegs35%
Hooded Merganser32%
Glaucous-winged Gull29%
Red-breasted Merganser29%
Short-eared Owl28%