Birding spot · Williamson County, Illinois
Birding at Crab Orchard National Wildlife Refuge: What You'll See Each Week In November, the birds most often reported at Crab Orchard National Wildlife Refuge are Ring-billed Gull (94%), Great Blue Heron (89%), and Gadwall (67%). It is busiest in spring, when 92 species turn up on at least 1 in 20 checklists, and species counts peak in early May (101 species). 172 species have been reported here across 1,040 complete checklists from 181 birders.
Species by week 0 25 50 75 100 125 Jan 1-7: 56 species on 5%+ of 38 checklists Jan 8-14: 53 species on 5%+ of 26 checklists Jan 15-21: 47 species on 5%+ of 21 checklists Jan 22-31: 45 species on 5%+ of 24 checklists Feb 1-7: 44 species on 5%+ of 23 checklists Feb 8-14: 56 species on 5%+ of 14 checklists Feb 15-21: 51 species on 5%+ of 21 checklists Feb 22-28: 50 species on 5%+ of 25 checklists Mar 1-7: 55 species on 5%+ of 27 checklists Mar 8-14: 69 species on 5%+ of 19 checklists Mar 15-21: 53 species on 5%+ of 26 checklists Mar 22-31: 41 species on 5%+ of 24 checklists Apr 1-7: 74 species on 5%+ of 16 checklists Apr 8-14: 53 species on 5%+ of 24 checklists Apr 15-21: 52 species on 5%+ of 21 checklists Apr 22-30: 81 species on 5%+ of 23 checklists May 1-7: 101 species on 5%+ of 32 checklists May 8-14: low data (9 checklists) May 15-21: 78 species on 5%+ of 10 checklists May 22-31: 80 species on 5%+ of 17 checklists Jun 1-7: 78 species on 5%+ of 15 checklists Jun 8-14: 78 species on 5%+ of 10 checklists Jun 15-21: low data (5 checklists) Jun 22-30: low data (9 checklists) Jul 1-7: low data (9 checklists) Jul 8-14: 58 species on 5%+ of 11 checklists Jul 15-21: low data (9 checklists) Jul 22-31: 48 species on 5%+ of 16 checklists Aug 1-7: 59 species on 5%+ of 13 checklists Aug 8-14: 61 species on 5%+ of 19 checklists Aug 15-21: 80 species on 5%+ of 19 checklists Aug 22-31: 55 species on 5%+ of 32 checklists Sep 1-7: 49 species on 5%+ of 28 checklists Sep 8-14: 55 species on 5%+ of 25 checklists Sep 15-21: 47 species on 5%+ of 23 checklists Sep 22-30: 55 species on 5%+ of 39 checklists Oct 1-7: 38 species on 5%+ of 26 checklists Oct 8-14: 44 species on 5%+ of 28 checklists Oct 15-21: 53 species on 5%+ of 15 checklists Oct 22-31: 48 species on 5%+ of 28 checklists Nov 1-7: 52 species on 5%+ of 32 checklists Nov 8-14: 52 species on 5%+ of 33 checklists Nov 15-21: 52 species on 5%+ of 22 checklists Nov 22-30: 49 species on 5%+ of 28 checklists Dec 1-7: 70 species on 5%+ of 20 checklists Dec 8-14: 46 species on 5%+ of 29 checklists Dec 15-21: 61 species on 5%+ of 20 checklists Dec 22-31: 44 species on 5%+ of 37 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 Ring-billed Gull 94% 2 Great Blue Heron 89% 3 Gadwall 67% 4 Pied-billed Grebe 66% 5 Double-crested Cormorant 55% 6 Turkey Vulture 44% 7 American Crow 41% 8 Mallard 40% 9 Blue Jay 38% 10 Ruddy Duck 38% 11 American White Pelican 37% 12 Black Vulture 32% 13 Eastern Bluebird 32% 14 Bonaparte's Gull 30% 15 Bald Eagle 30% 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 Illinois.
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 .
Ring-billed Gull94%
Great Blue Heron89%
Gadwall67%
Pied-billed Grebe66%
Double-crested Cormorant55%
Turkey Vulture44%
American Crow41%
Mallard40%
Blue Jay38%
Ruddy Duck38%
American White Pelican37%
Black Vulture32%
Eastern Bluebird32%
Bonaparte's Gull30%
Bald Eagle30%