Birding spot · Clatsop County, Oregon
Birding at Knowland Slough: What You'll See Each Week In November, the birds most often reported at Knowland Slough are European Starling (83%), Mallard (76%), and Red-winged Blackbird (73%). It is busiest in fall, when 76 species turn up on at least 1 in 20 checklists, and species counts peak in the second week of November (78 species). 174 species have been reported here across 1,303 complete checklists from 326 birders.
Species by week 0 20 40 60 80 Jan 1-7: 70 species on 5%+ of 50 checklists Jan 8-14: 76 species on 5%+ of 18 checklists Jan 15-21: 71 species on 5%+ of 34 checklists Jan 22-31: 69 species on 5%+ of 36 checklists Feb 1-7: 61 species on 5%+ of 27 checklists Feb 8-14: 63 species on 5%+ of 24 checklists Feb 15-21: 76 species on 5%+ of 19 checklists Feb 22-28: 63 species on 5%+ of 13 checklists Mar 1-7: 65 species on 5%+ of 14 checklists Mar 8-14: 66 species on 5%+ of 16 checklists Mar 15-21: 52 species on 5%+ of 22 checklists Mar 22-31: 59 species on 5%+ of 25 checklists Apr 1-7: 56 species on 5%+ of 12 checklists Apr 8-14: 75 species on 5%+ of 20 checklists Apr 15-21: 74 species on 5%+ of 36 checklists Apr 22-30: 75 species on 5%+ of 73 checklists May 1-7: 71 species on 5%+ of 61 checklists May 8-14: 69 species on 5%+ of 43 checklists May 15-21: 64 species on 5%+ of 64 checklists May 22-31: 61 species on 5%+ of 49 checklists Jun 1-7: 46 species on 5%+ of 21 checklists Jun 8-14: 53 species on 5%+ of 15 checklists Jun 15-21: low data (4 checklists) Jun 22-30: 34 species on 5%+ of 10 checklists Jul 1-7: low data (6 checklists) Jul 8-14: low data (9 checklists) Jul 15-21: low data (6 checklists) Jul 22-31: low data (3 checklists) Aug 1-7: low data (5 checklists) Aug 8-14: low data (5 checklists) Aug 15-21: low data (8 checklists) Aug 22-31: 52 species on 5%+ of 11 checklists Sep 1-7: 60 species on 5%+ of 17 checklists Sep 8-14: 49 species on 5%+ of 24 checklists Sep 15-21: 50 species on 5%+ of 16 checklists Sep 22-30: 55 species on 5%+ of 21 checklists Oct 1-7: 65 species on 5%+ of 10 checklists Oct 8-14: 56 species on 5%+ of 28 checklists Oct 15-21: 70 species on 5%+ of 26 checklists Oct 22-31: 60 species on 5%+ of 29 checklists Nov 1-7: 70 species on 5%+ of 28 checklists Nov 8-14: 78 species on 5%+ of 36 checklists Nov 15-21: 76 species on 5%+ of 45 checklists Nov 22-30: 75 species on 5%+ of 105 checklists Dec 1-7: 68 species on 5%+ of 25 checklists Dec 8-14: 78 species on 5%+ of 44 checklists Dec 15-21: 71 species on 5%+ of 48 checklists Dec 22-31: 72 species on 5%+ of 42 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 European Starling 83% 2 Mallard 76% 3 Red-winged Blackbird 73% 4 Cackling Goose 69% 5 Song Sparrow 67% 6 Brewer's Blackbird 60% 7 White-crowned Sparrow 60% 8 Bufflehead 58% 9 Bald Eagle 57% 10 Great Blue Heron 57% 11 Golden-crowned Sparrow 54% 12 Green-winged Teal 49% 13 American Kestrel 48% 14 Killdeer 46% 15 Gadwall 46% 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 Oregon.
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 .
European Starling83%
Mallard76%
Red-winged Blackbird73%
Cackling Goose69%
Song Sparrow67%
Brewer's Blackbird60%
White-crowned Sparrow60%
Bufflehead58%
Bald Eagle57%
Great Blue Heron57%
Golden-crowned Sparrow54%
Green-winged Teal49%
American Kestrel48%
Killdeer46%
Gadwall46%