This Barn Owl was taken care by a gardener in Queen's Park.
It's a pity, is'n it? A night bird, it often sneaks to sleep in a barn during daytime. And that's the way it is prone to be trapped. Keeping a protected species is prohibited anyway. Maybe, the bird might be found in a sick or injured condition and thus temporarily retained for healing.
Visiting the place again the day after, the bird was not present, empty case. Good luck Barn Owl!