Birds of Illinois

Birds of Indiana Field Guide

Illinois Birds: A Folding Pocket Guide to Familiar Species (Pocket Naturalist Guide Series)

Trees of Illinois

Midwestern Birds: Backyard Guide - Watching - Feeding - Landscaping - Nurturing - Indiana, Ohio, Iowa, Illinois, Michigan, Wisconsin, Minnesota, ... Dakota (Bird Watcher's Digest Backyard Guide)

Backyard Birds of Illinois: How to Identify and Attract the Top 25 Birds

Chicago Birds: A Folding Pocket Guide to Familiar Species in Northeastern Illinois (Pocket Naturalist Guide Series)

Trees of Illinois Field Guide (Tree Identification Guides)

Birds of Chicago (U.S. City Bird Guides)

Peterson Field Guide to Birds of Eastern and Central North America, 6th Edition (Peterson Field Guides)

National Geographic Backyard Guide to the Birds of North America (National Geographic Backyard Guides)