inspection time

'My' nuthatch is having inspection time...its 'my', because he has his nest almost every year in the same house..
He rents the house so to speak every year. And the deal is that he allows me to film or make photgraphs of his breed.
That's a good deal, and we both are delighted with the fun.

He sings and tweets to his mate and she is singing back to him..
pieuw-pieuw pieeeuw!
but don't ask me who is he or who is her...