Owls never miss a trick—while seemingly relaxing on a tree branch, they're still secretly on the lookout, ready to turn their heads at the slightest noise and take flight to escape predators or catch their prey. And, as proven by keepers, owls are even capable of learning and memorising tricks to perform. No wonder, then, that owls are associated with wisdom and often depicted as spectacled intellectuals. They're the epitome of the figurative rare bird, and thus the most fitting motif for funny greeting cards.