A PDF field guide to the species reported in and around Oak-Hickory 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 Oak-hickory Forest Preserve include Crossbill, Red-Belted Bumble Bee, Chickweed Geometer, Cat Squirrel and Brown-Belted Bumblebee. Plants lead the list with 42 species, followed by 3 insects and 2 mammals.
The 20 species reported most often here, of 50 in the full guide.
Treacle-Berry

Blue Lobelia
Butterflyweed
Beebalm
Snapweed

Tell me what you're looking for, and I'll do my best to answer.
Modesty

Crossbill

Blank Currant

Buckthorn
Red Clover

Bluejacket

Cardinalflower

Oleaster

Oxeye

Red-Belted Bumble Bee
Heal-All
Blackcap
Tell me what you're looking for, and I'll do my best to answer.

Chickweed Geometer
Cat Squirrel