We have been feeding birds in our backyard for some time and the blue jays have become fairly accustomed to getting peanuts from us. They will usually perch on a nearby branch, often making lots of noise, and wait until we put one out on the top of our barbecue. They will tolerate us being within a couple of feet as they come grab the peanuts.
We have also been feeding squirrels peanuts from our back door. They have learned to look in through the glass door and will scratch at the glass until we come give them a peanut. Recently my wife heard some scratching at the glass and assumed it was just another squirrel. Instead she saw a blue jay on the ground at the door. As she watched in amazement, it jumped up and scratched at the glass, sounding just like the squirrels. When she went to open the door, it flew up to a nearby branch and then took the peanut as usual.
Did this jay learn something from watching the squirrels? We're waiting to see if we get a repeat performance of this unusual behaviour.
-John