If I would compare myself or the INFP to any bird it would be to my late Budgerigar, Chase. He would sit there quietly sometimes in own little world, keeping his thoughts to himself. Other times when on an emotional high he would sing, make lots of noise and move around a lot. Sometimes he would even act like he was stoned, he was a little bit strange that one. He liked to occasionally mimic the usual rhetoric he had heard in pasing, which I must say I also enjoy myself. Finally when he was poked and prodded or irritated in any way, he would bite back.
Finally, the dear bird apparently (according to my uncle who was looking after him at the time) committed suicide when we went on vacation for a week in 2005, most likely thinking we were never coming back. In my books, that makes him a little bit emo as well. I'm tempted to think he may have been an INFP himself (thats if birds are capable of abstract thought of course.)