when i was just home on lunch, i looked, and i couldn't find a single nest. i wish i knew that the trees were, but they're large,(30ft ish) oval shaped trees. very dense with leaves, so if there are nests, they're buried inside. you can walk right up and see the caterpillars on the leaves, but no nests. that being said, they're either dying off or molting. no more leavings, and i'm finding some dead ones on the ground. we'll see if there's a phase 2.