Nuthatch

The whole day, I hear the nuthatch singing and tweeting his beautiful high-pitched singing.
Pfiieeeeew PfieeeuwPhieeeeuw!
Sometimes I think I hear my sisters ringtone, but no, this is definitely the nuthatch realtime.
Meanwhile he is building on the house, making the door smaller.
and in between he is furnishing the house with...yea...I don't exactly what it is going to be, those little brick stones?