Stunning portraits show a dozen hand-reared owls who have been trained to take part in flying displays. The youngest is Opia, an Ashy-faced owl, and the oldest is Zeus, a Eurasian eagle owl - who is also the largest bird at the centre. Stunning portraits show a dozen hand-reared owls who have been trained to take part in flying displays. 'Of the birds pictured, the one that's been flying in the shows the longest is our Eurasian eagle owl, Zeus, who is 19 this year. Right: Zeus - an Eurasian eagle owlPictured: Rafiki - a milky eagle owl which are typically found in sub-Saharan AfricaLeft: Tony - a Tawny owl.