A PDF field guide to the species reported in and around Jack E. Cook Park and Forest Preserve, 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 Jack E. Cook Park And Forest Preserve include Northern Leopard Frog, Viceroy, Common Eastern Bumblebee, Swamp Milkweed Leaf Beetle and White-Faced Meadowhawk. Plants lead the list with 35 species, followed by 14 insects.
The 20 species reported most often here, of 50 in the full guide.
Soybean
Wild Geranium
Hedge Garlic

Northern Leopard Frog
Butterflyweed
Viceroy
Tell me what you're looking for, and I'll do my best to answer.

Wax Balls
Common Eastern Bumblebee
Bluebells

Wild Onion
Sour Dock

Browneyed Susan

Pear

Arborvitae

Soft Maple

Cup Plant

Orange Coneflower
Swamp Milkweed Leaf Beetle
Tell me what you're looking for, and I'll do my best to answer.

White-Faced Meadowhawk
Yellow-Striped Locust