Birding spot · Lake County, Illinois
Birding at Rollins Savanna Forest Preserve: What You'll See Each Week In November, the birds most often reported at Rollins Savanna Forest Preserve are Canada Goose (90%), Mallard (74%), and American Tree Sparrow (67%). It is busiest in spring, when 88 species turn up on at least 1 in 20 checklists, and species counts peak in the second week of May (99 species). 201 species have been reported here across 1,142 complete checklists from 297 birders.
Species by week 0 20 40 60 80 100 Jan 1-7: 36 species on 5%+ of 33 checklists Jan 8-14: 20 species on 5%+ of 15 checklists Jan 15-21: low data (8 checklists) Jan 22-31: 35 species on 5%+ of 15 checklists Feb 1-7: low data (7 checklists) Feb 8-14: low data (3 checklists) Feb 15-21: 54 species on 5%+ of 19 checklists Feb 22-28: 50 species on 5%+ of 14 checklists Mar 1-7: 41 species on 5%+ of 22 checklists Mar 8-14: 60 species on 5%+ of 33 checklists Mar 15-21: 59 species on 5%+ of 24 checklists Mar 22-31: 62 species on 5%+ of 73 checklists Apr 1-7: 74 species on 5%+ of 59 checklists Apr 8-14: 76 species on 5%+ of 69 checklists Apr 15-21: 78 species on 5%+ of 33 checklists Apr 22-30: 85 species on 5%+ of 33 checklists May 1-7: 81 species on 5%+ of 21 checklists May 8-14: 99 species on 5%+ of 15 checklists May 15-21: 83 species on 5%+ of 25 checklists May 22-31: 73 species on 5%+ of 41 checklists Jun 1-7: 68 species on 5%+ of 24 checklists Jun 8-14: 74 species on 5%+ of 14 checklists Jun 15-21: 70 species on 5%+ of 17 checklists Jun 22-30: 64 species on 5%+ of 35 checklists Jul 1-7: 70 species on 5%+ of 32 checklists Jul 8-14: 79 species on 5%+ of 18 checklists Jul 15-21: 75 species on 5%+ of 26 checklists Jul 22-31: 71 species on 5%+ of 26 checklists Aug 1-7: low data (9 checklists) Aug 8-14: 68 species on 5%+ of 41 checklists Aug 15-21: 77 species on 5%+ of 13 checklists Aug 22-31: 81 species on 5%+ of 15 checklists Sep 1-7: 71 species on 5%+ of 12 checklists Sep 8-14: 81 species on 5%+ of 15 checklists Sep 15-21: low data (5 checklists) Sep 22-30: 82 species on 5%+ of 58 checklists Oct 1-7: 71 species on 5%+ of 25 checklists Oct 8-14: 68 species on 5%+ of 21 checklists Oct 15-21: 81 species on 5%+ of 14 checklists Oct 22-31: 81 species on 5%+ of 19 checklists Nov 1-7: 56 species on 5%+ of 24 checklists Nov 8-14: 54 species on 5%+ of 24 checklists Nov 15-21: 53 species on 5%+ of 16 checklists Nov 22-30: 49 species on 5%+ of 30 checklists Dec 1-7: 50 species on 5%+ of 10 checklists Dec 8-14: low data (5 checklists) Dec 15-21: low data (8 checklists) Dec 22-31: 33 species on 5%+ of 24 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 Canada Goose 90% 2 Mallard 74% 3 American Tree Sparrow 67% 4 Sandhill Crane 60% 5 Red-tailed Hawk 51% 6 Trumpeter Swan 51% 7 Blue Jay 50% 8 Dark-eyed Junco 47% 9 Hooded Merganser 47% 10 American Robin 46% 11 Red-bellied Woodpecker 45% 12 European Starling 39% 13 Mourning Dove 39% 14 Black-capped Chickadee 36% 15 Ring-billed Gull 36% 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 .
Canada Goose90%
Mallard74%
American Tree Sparrow67%
Sandhill Crane60%
Red-tailed Hawk51%
Trumpeter Swan51%
Blue Jay50%
Dark-eyed Junco47%
Hooded Merganser47%
American Robin46%
Red-bellied Woodpecker45%
European Starling39%
Mourning Dove39%
Black-capped Chickadee36%
Ring-billed Gull36%