Monarch butterflies migrate through Iowa - Iowa Natural Heritage

Monarch butterflies' white spots may help them fly farther

Nature, Westward Wings, A NATURE Short Film

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Experts: Climate Change Alters Monarch Butterflies

A Mexican mural highlights Storm Lake's diversity with butterflies

Butterfly taggers are helping track migrating monarchs : NPR

Monarch Conservation Strategies

Monarch Butterfly Nebraska Game & Parks Commission

Monarch butterflies make their way from Niagara Falls to Mexico

Monarch butterfly migration - Wikipedia