The three butterflies of Genus Vanessa that are regularly seen in Ontario are all migrants. Of the three, the Red Admiral is the most common, followed by the American Lady and then the Painted Lady. These butterflies overwinter in the southern states and journey north to Canada in varying numbers each year. Two major migrations occurred in 2010 and 2012 when hundreds of thousands - and perhaps millions - of Red Admirals flew north on strong southern winds during the months of April and May.