The call of a common buzzard can be confused with the call of a red kite if not familiar with them, there is however, a big difference between the two.
They will sit for ages in a tree. I had one actually come down in the garden once (on the bank, which is the edge of the wood), and take, what I presume was a bank vole. Apart from that, they have perched in my trees, although this has now been taken over by the kites, who will not tolerate the buzzards near them.
As I said, be prepared for a very long wait indeed