Shows up in your garden, eats all the slugs, and waddles off like a tiny spiky contractor.
Fun fact: When encountering a new scent, they chew it into foam and smear it across their own spines.
Went extinct partly because it walked up to sailors and just stood there, which is a fairly poor strategy.
Fun fact: Its closest living relative is the Nicobar pigeon, a shimmering green bird that can still fly.