The Common Crow is unpalatable due to alkaloids ingested during its caterpillar stage. It therefore flies slowly and in a leisurely manner, giving a would-be predator ample time to recognise and avoid attacking it. Inexperienced predators may attack it, but will soon learn to avoid this butterfly as the alkaloids in its body induce vomiting.The Common Crow's tough, leathery skin also enables it to survive occasional attacks. When attacked it fakes death and oozes a nauseating liquid which makes