Human fancier

I appear to have been adopted by a pigeon who hasn't made it home.
I was up early but totally lacking in energy so movement was difficult. Bertie was on the roof of the shed but came down when he saw me and then followed me around as I refilled the feeders, coming with me on
my arm for some of the time.. When I sat down for a cup of coffee he flew up and happily got stuck into the seed I had on my knee (please note the knee protectors are to protect my knees from falls, not Bertie.
He seems to think he can come and go as he please and having down a tour of the lounge he then made his exit by way of ....my head!