During the right season and in the right place, butterflies can congregate in large numbers.
NPS Photo by Sally King
The majority of butterflies are active only in the summer because they feed on the pollen of flowering plants. These include several species of Tiger Swallowtails, Fritillaries, Hairstreaks, and Admirals. Some are large with wingspans of up to 4.5" while others are tiny and often overlooked. Some of these tiniest butterflies display the most vivid colors of blue, green, and orange.