You can use the Save as command to save individual messages in Text or HTML format. To save multiple messages, you'll need to use VBA or a utility. See Tools for a list of utilities that can automate the process and save messages in a variety of formats.
For a small fee, Southwest Airlines' Early Bird Check-In allows passengers to check-in to a flight automatically up to 36 hours prior to the flight's scheduled departure time.
Placing a tiny numbered strip of aluminum on the bird's leg is the only way to positively identify an individual hummingbird, so if it is recaptured later, either at the same location or by another bander elsewhere, science may learn something about its lifespan, health, and migratory movements.