Industrious young swallow

We share our facilities with swallows who come to raise a family each year.  We have got quite used to their incessant twittering and aerial acrobatics as they speed past our heads with microns to spare.  The youngsters have fledged and have been practising their flying skills round the yard.  We noticed that one of them was bouncing about on the ground in wet patches and picking up bits of hay in its beak and flying off with it.  Intrigued, we had a look in the barn at the rafters, where the nest is.  It seems that the young fellow has been practising his nest building skills.  
We think the little chap has a bit of work to do on the design concept.

House built by Mum and Dad

House built by Junior