Most Common Species
The 20 species reported most often here, of 50 in the full guide.
Rhamnus cathartica
Buckthorn
Very Common755 obs.
Glechoma hederacea
Haymaids
Very Common400 obs.
A PDF field guide to the species reported in and around Cook County, with common and scientific names and up to 3 photos of each, laid out for use in the field and offline.
The animals people report most often in and around Cook County include Canada Goose, House Sparrow, American Robin, Red-Winged Blackbird and Gray Squirrel. Plants lead the list with 31 species, followed by 12 birds and 4 insects.
The 20 species reported most often here, of 50 in the full guide.
Buckthorn
Haymaids
Poison Ivy
Hedge Garlic
Boxelder
Beebalm
Tell me what you're looking for, and I'll do my best to answer.
Mayapple
Dulcamara
Canada Goose
House Sparrow
American Robin
Red-Winged Blackbird
Gray Squirrel
Common Cardinal
Mallard
Althea
Myrtle
Dutch Clover
Tell me what you're looking for, and I'll do my best to answer.
Ashweed
Wild Geranium