This book is really long.  It is telling multiple stories at once.  It is about a family who plants native species in their yard to attract the birds and butterflies, and the kids waiting to see a specific type of bird - the Cerulean Warbler.  It is also the story of the Cerulean Warbler who has to cross hundreds of miles of sea to get to his destination and all the bumps and bruises along the way.  It also wants to be a non-fiction story telling the reader true facts about birds and what they can do to help their populations.  Over all the story is nice and the illustrations while at times seem dated, they also at times seem fun and lively.  For this reader, this story jumps between stories too often and tries to be all to everyone.  I like it, but it has been done better.