We've had lots of fun pulling together a gallery of 10 fab, freebie Twitter bird-themed icons, so click through to view, and be sure to check the terms of use for each set before you download. Although all are available for free, some are only for non-commercial use. [nggallery id=172] More Twitter Resources from Mashable: - The Origin of Twitter's "Fail Whale" - 5 Free Ways to Never Miss a Twitte