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Bird Identification
Cornell Labs - All About Birds - Learn the basics of birds, where they live, what they eat, migration and conservation.
The Sibley Guide To Birds - This detailed and thorough guide has useful illustrations, maps and detailed descriptions of birds. One of many field guides to explore.
Guide to Common Sparrows - Quick reference guide to common sparrows of Chicago region.
Guide to Common Warblers - Quick reference guide to common warblers of the Chicago region.
Tools
Merlin app - download for your mobile device to help with visual and sound identification.
About eBird - Introduction to the eBird tool for recording birding observations and much, much more.