Another great gift for Bird watchers is the iFlyer bird call wand. It is a small handheld wand and a small field guide that has pictures of NA birds. Next to each pic is a barcode... you wand it and it plays their unique bird call. I went to Mt auburn cemetary last spring (cambridge, MA) with a friend who has one and this device is great. At $87 from Amazon not cheap but the birders I know love this device.
here is the link to Amazon:
Amazon.com: I-Flyer BirdSong Scanning Wand: Patio, Lawn & Garden