Really beautiful. I looked them up and they are Cirrus Clouds - or Mares Tails, made of ice particles which probably explains the little rainbow in the corner of the photo below:
Apparently they could signal rain in the next three to five days - pity.
And while I had my camera out I thought I'd take a quick snap of our single little chick which hatched yesterday - Mum's being good now but she wasn't a patient sitter and sadly broke the other 4 eggs
Better get back to gardening now.....