They are links to facebook, that may be why they didn't work. I know you know what they look like. We get them in our yard once in a while, but I hear them on the mountain fairly often, especially in the spring.
As far as I know Pileated woodpeckers don't migrate.
Bald Eagles do, but it's pretty limited, they will go as far as they need to, to get away from frozen water. They especially like areas where there is a power plant that releases warm water into large rivers.