Even though Skippers are considered to be butterflies their appearance would suggest that their might be more closely related to moths than butterflies. Monarchs can attain an altitude of a kilometer or more during migration. The major cause of death to the Cabbage White larvae is rain, which knocks them off their plants where they drown or are severely injured. Northern Pearly Eyes are very territorial. They will attack other male intruders.
Butterflies are really cool.
Eastern Tailed Blue, Marine Blue, Bog Elfin and the Small Checkered Skipper all share top honours for Canada's smallest butterflies at wing a span of 16mm. Worldwide the smallest are the Pygmy butterflies at 11mm. The Mourning Cloak has been known to play dead in order to escape predators. Mourning Cloaks and Compton Tortoiseshells frequently feed at Sapsucker drillings. Butterflies smell with their antennae.