Blue Jays - What a Surprise!

Blue Jays while a common bird in Virginia, they are very uncommon in our yard.  I have tried to lure them in since we moved here but haven't been successful. Because of that I was so surprised to see a pair in and out of the trees picking up nesting material and flying deep into the woods.  I watched them for about an hour and haven't seen them since.  Oh well, at least I know they are around.