3 links
Green Backed Heron
greenbackedheron.com
Bird watching journal by Kent Nickell of Waterloo. Includes ID workshop and many photos of birds in Iowa and beyond.
Iowa Birds and Birding
iowabirds.org
Iowa Ornithologists' Union site with rare bird alerts, Iowa Records Committee, checklists, guide to birding Iowa, IA-BIRD e-mail group, and quizzes.