What's flying near you?

It must be the cold weather bringing out the birds both for food and water. Our waterfall is in great demand when everything else is frozen, although I can't fathom why anything would want a bath in -5°. ATM we have 4 if not 5 robins vying for supremacy over two feeding stations, some of the aerial combats are quite spectacular. I shall be glad when they decide to pair up.