Eurasian bittern

The Eurasian bittern is a shy, stocky heron that hides in dense reeds near water. It lives across Europe, Asia, and parts of Africa. You're more likely to hear its deep booming call in spring than actually spot this master of camouflage.

• Males make a low, foghorn-like boom to attract mates in spring.
• Eats fish, frogs, small birds, and even water insects.
• Two subspecies exist: one in northern regions, one in southern Africa.