Just took this in the Paddington train station. The gentleman said the Great Horned Owl is used for taking care of the pigeons, of which there are many at Paddington. I have seen the noble bird before at the station, but have not yet been fortunate enough to seem him in action. One has hope. I am not sure what “taking care of” exactly means, but I will let you know when I find out.
I once saw a Red Tailed Hawk “take care of” a pigeon in the wild. Seeing a Falconer in action would also be very cool.