Blue Jay in Arlington, Virginia (in my backyard). See more of my photos.
This is a picture I simply could not have taken before I bought my new camera (a Canon PowerShot SX60 HS Digital Camera with 65 times optical zoom). Birds are still hard to photograph but now at least occasionally I get a decent photo of birds. If you want to get photos of wildlife it is a great camera. And it is a wonderful camera in general.
I like just planting things that will feed and shelter birds (and others) rather than filling bird feeders myself. There is information on how to use your backyard to promote wildlife. I see many birds flying around in my backyard, which is quite nice. Blue jays are some of my favorites.
Blue jays diet is composed mostly of insects and nuts. They especially like acorns.
Young jays may be more likely to migrate than adults, but many adults also migrate. Some individual jays migrate south one year, stay north the next winter, and then migrate south again the next year. No one has worked out why they migrate when they do.
The pigment in blue jay feathers is melanin, which is brown. The blue color is caused by scattering light through modified cells on the surface of the feather barbs.