Road running 45:57  4.7 mi (9:47 / mi)
shoes: Adrenaline 2
GSFC perimeter road.
Butterflies this run:
Red Admiral (Vanessa atalanta): dozens of them! This is part of a huge migration. They're flying north, fast and close to the ground, crossing the parking lot at the rate of several per minute. You can only get a look at them if they stop and perch for a while.