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Explore the best places to hunt for butterflies. Use Google to search for the best location for finding butterflies near your home.

One in particular, the Monarch Butterfly has a particularly massive and lengthy migration. In North America they make massive southward migrations starting in August until the first frost. A northward migration takes place in the spring. By the end of October, the population of the Rocky Mountains migrates to the sanctuaries of the Mariposa Monarca Biosphere Reserve in the Mexican states of Michoacán and México. The western population overwinters in various sites in central coastal and southern California, United States, notably in Pacific Grove, Santa Cruz, and Pismo Beach.

It is thought that the overwinter population of those east of the Rockies may reach as far north as Texas and Oklahoma during the spring migration. It is the second, third and fourth generations that return to their northern locations in the United States and Canada in the spring. How the species manages to return to the same overwintering spots over a gap of several generations is still a subject of research; the flight patterns appear to be inherited, based on a combination of circadian rhythm and the position of the sun in the sky.

Monarchs can be found in many states across the US.