Birding spot · Cook County, Illinois
Birding at Horner (Henry): What You'll See Each Week In November, the birds most often reported at Horner (Henry) are Dark-eyed Junco (75%), Mallard (75%), and American Robin (74%). It is busiest in spring, when 69 species turn up on at least 1 in 20 checklists, and species counts peak in the second week of May (86 species). 172 species have been reported here across 2,594 complete checklists from 408 birders.
Species by week 0 20 40 60 80 100 Jan 1-7: 29 species on 5%+ of 38 checklists Jan 8-14: 27 species on 5%+ of 28 checklists Jan 15-21: 32 species on 5%+ of 30 checklists Jan 22-31: 30 species on 5%+ of 47 checklists Feb 1-7: 27 species on 5%+ of 34 checklists Feb 8-14: 27 species on 5%+ of 23 checklists Feb 15-21: 29 species on 5%+ of 28 checklists Feb 22-28: 33 species on 5%+ of 45 checklists Mar 1-7: 37 species on 5%+ of 39 checklists Mar 8-14: 31 species on 5%+ of 43 checklists Mar 15-21: 34 species on 5%+ of 42 checklists Mar 22-31: 40 species on 5%+ of 70 checklists Apr 1-7: 42 species on 5%+ of 48 checklists Apr 8-14: 45 species on 5%+ of 68 checklists Apr 15-21: 48 species on 5%+ of 108 checklists Apr 22-30: 52 species on 5%+ of 170 checklists May 1-7: 68 species on 5%+ of 159 checklists May 8-14: 86 species on 5%+ of 140 checklists May 15-21: 86 species on 5%+ of 86 checklists May 22-31: 60 species on 5%+ of 91 checklists Jun 1-7: 44 species on 5%+ of 60 checklists Jun 8-14: 43 species on 5%+ of 50 checklists Jun 15-21: 48 species on 5%+ of 55 checklists Jun 22-30: 44 species on 5%+ of 42 checklists Jul 1-7: 44 species on 5%+ of 32 checklists Jul 8-14: 44 species on 5%+ of 33 checklists Jul 15-21: 42 species on 5%+ of 33 checklists Jul 22-31: 36 species on 5%+ of 30 checklists Aug 1-7: 45 species on 5%+ of 38 checklists Aug 8-14: 43 species on 5%+ of 31 checklists Aug 15-21: 48 species on 5%+ of 36 checklists Aug 22-31: 42 species on 5%+ of 81 checklists Sep 1-7: 51 species on 5%+ of 62 checklists Sep 8-14: 49 species on 5%+ of 52 checklists Sep 15-21: 47 species on 5%+ of 56 checklists Sep 22-30: 60 species on 5%+ of 67 checklists Oct 1-7: 61 species on 5%+ of 62 checklists Oct 8-14: 50 species on 5%+ of 68 checklists Oct 15-21: 57 species on 5%+ of 56 checklists Oct 22-31: 42 species on 5%+ of 61 checklists Nov 1-7: 40 species on 5%+ of 44 checklists Nov 8-14: 38 species on 5%+ of 31 checklists Nov 15-21: 33 species on 5%+ of 31 checklists Nov 22-30: 32 species on 5%+ of 39 checklists Dec 1-7: 31 species on 5%+ of 27 checklists Dec 8-14: 31 species on 5%+ of 25 checklists Dec 15-21: 27 species on 5%+ of 30 checklists Dec 22-31: 24 species on 5%+ of 25 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 Dark-eyed Junco 75% 2 Mallard 75% 3 American Robin 74% 4 American Goldfinch 46% 5 Rock Pigeon 44% 6 Northern Cardinal 43% 7 House Sparrow 41% 8 Black-capped Chickadee 39% 9 Downy Woodpecker 37% 10 Golden-crowned Kinglet 33% 11 American Tree Sparrow 30% 12 American Crow 30% 13 White-throated Sparrow 30% 14 Ring-billed Gull 29% 15 European Starling 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 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 .
Dark-eyed Junco75%
Mallard75%
American Robin74%
American Goldfinch46%
Rock Pigeon44%
Northern Cardinal43%
House Sparrow41%
Black-capped Chickadee39%
Downy Woodpecker37%
Golden-crowned Kinglet33%
American Tree Sparrow30%
American Crow30%
White-throated Sparrow30%
Ring-billed Gull29%
European Starling28%