Sian and I have been looking after Clarence the Kestrel on our own for a few weeks now.
We have to go down every morning before lectures to weigh and perch him out.
He is weight so we can monitor any changes but also to know how much he will need feeding that day. You can normally tell if they're getting overweight as they'll be less keen to work for their food so we try to keep him at a good weight so he is keen to work.
I'm really enjoying getting involved with Falconry and we're planning on going to an International Meet in a few weeks, hunting with Harris Hawks, Peregrines and Eagles!!