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Preparing for Migration Keeping Crane Chicks Healthy Back   Here's what we know: During the health exam, each chick gets a temporary radio transmitter on its left leg. This is attached to a colored and numbered leg band. The transmitters will help the migration team track any chick that gets separated during the upcoming journey south. They don't want to risk losing a single one! Photo Credits: WCEP Journey North is pleased to feature this educational adventure made possible by the Whooping Crane Eastern Partnership.