Birding spot · DuPage County, Illinois
Birding at Morton Arboretum: What You'll See Each Week In November, the birds most often reported at Morton Arboretum are Blue Jay (83%), Black-capped Chickadee (82%), and Dark-eyed Junco (74%). It is busiest in spring, when 82 species turn up on at least 1 in 20 checklists, and species counts peak in the second week of May (94 species). 185 species have been reported here across 3,804 complete checklists from 557 birders.
Species by week 0 20 40 60 80 100 Jan 1-7: 30 species on 5%+ of 95 checklists Jan 8-14: 32 species on 5%+ of 59 checklists Jan 15-21: 30 species on 5%+ of 42 checklists Jan 22-31: 28 species on 5%+ of 62 checklists Feb 1-7: 34 species on 5%+ of 79 checklists Feb 8-14: 31 species on 5%+ of 55 checklists Feb 15-21: 34 species on 5%+ of 69 checklists Feb 22-28: 30 species on 5%+ of 67 checklists Mar 1-7: 30 species on 5%+ of 61 checklists Mar 8-14: 37 species on 5%+ of 69 checklists Mar 15-21: 41 species on 5%+ of 52 checklists Mar 22-31: 44 species on 5%+ of 81 checklists Apr 1-7: 50 species on 5%+ of 71 checklists Apr 8-14: 56 species on 5%+ of 117 checklists Apr 15-21: 59 species on 5%+ of 142 checklists Apr 22-30: 79 species on 5%+ of 192 checklists May 1-7: 83 species on 5%+ of 147 checklists May 8-14: 94 species on 5%+ of 119 checklists May 15-21: 74 species on 5%+ of 90 checklists May 22-31: 66 species on 5%+ of 103 checklists Jun 1-7: 56 species on 5%+ of 82 checklists Jun 8-14: 58 species on 5%+ of 63 checklists Jun 15-21: 56 species on 5%+ of 70 checklists Jun 22-30: 60 species on 5%+ of 93 checklists Jul 1-7: 58 species on 5%+ of 57 checklists Jul 8-14: 54 species on 5%+ of 54 checklists Jul 15-21: 51 species on 5%+ of 44 checklists Jul 22-31: 53 species on 5%+ of 50 checklists Aug 1-7: 50 species on 5%+ of 51 checklists Aug 8-14: 46 species on 5%+ of 41 checklists Aug 15-21: 57 species on 5%+ of 47 checklists Aug 22-31: 69 species on 5%+ of 93 checklists Sep 1-7: 71 species on 5%+ of 93 checklists Sep 8-14: 73 species on 5%+ of 93 checklists Sep 15-21: 68 species on 5%+ of 92 checklists Sep 22-30: 74 species on 5%+ of 80 checklists Oct 1-7: 68 species on 5%+ of 69 checklists Oct 8-14: 64 species on 5%+ of 76 checklists Oct 15-21: 59 species on 5%+ of 59 checklists Oct 22-31: 46 species on 5%+ of 114 checklists Nov 1-7: 41 species on 5%+ of 80 checklists Nov 8-14: 38 species on 5%+ of 99 checklists Nov 15-21: 37 species on 5%+ of 69 checklists Nov 22-30: 33 species on 5%+ of 83 checklists Dec 1-7: 36 species on 5%+ of 47 checklists Dec 8-14: 36 species on 5%+ of 67 checklists Dec 15-21: 33 species on 5%+ of 61 checklists Dec 22-31: 33 species on 5%+ of 105 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 Blue Jay 83% 2 Black-capped Chickadee 82% 3 Dark-eyed Junco 74% 4 Mallard 71% 5 Red-bellied Woodpecker 71% 6 Canada Goose 69% 7 White-breasted Nuthatch 69% 8 Northern Cardinal 63% 9 Downy Woodpecker 61% 10 American Goldfinch 52% 11 Red-tailed Hawk 49% 12 American Robin 46% 13 Red-breasted Nuthatch 46% 14 Great Blue Heron 42% 15 Hairy Woodpecker 32% 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 .
Blue Jay83%
Black-capped Chickadee82%
Dark-eyed Junco74%
Mallard71%
Red-bellied Woodpecker71%
Canada Goose69%
White-breasted Nuthatch69%
Northern Cardinal63%
Downy Woodpecker61%
American Goldfinch52%
Red-tailed Hawk49%
American Robin46%
Red-breasted Nuthatch46%
Great Blue Heron42%
Hairy Woodpecker32%