The thing that makes this postcard unnecessarily disturbing is the cringeing posture of these poor creatures. I suppose you would cringe if you had to make a living dressed up like this. Only the bird looks unabashed. In fact, he looks positively cocky. I think it's the feet.
Anyway, the back of the card tells us these are The Thorpe Park 'Animals'. It also tells us that Thorpe Park is 'A 400 acre magic wonderland of fun, pleasure and relaxation.' I've never been there, so I'll have take their word for it.