Great Spotted Woodpecker - Juvenile feeding behaviour

I found watching Great Spotted Woodpecker feeding their young quite fascinating for as they return to feed them the adult birds go straight on the defensive to outwit the sharp forward jabbing beak of the inexperienced juveniles

In the shot above the male flies in towards a perched Juvenile from a higher level and you might think as I did that this looks like an idea head to head location for feeding !

Not so !  On landing he immediately starts to lower his posture looking to place the sawn-off tree stump between them.

The juvenile gets impatient but lowers itself as well.

But when it tries to lunge again to grab the food it finds the stump in the way and the adult is still in control of the food..

The youngster tries a quick sideways move to come around the stump.

But the adult is quicker and moves down and then around the stump.

 When the juvenile catches up on his side of the stump the adult is already reaching out to safely deliver the food.

So the juvenile has had his first lesson in manners and been feed.  The male woodpecker now flies off to collect more food while the juvenile waits a little more patiently in the same location.