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Observation notes: I found a few milkweed plants in a shady nook behind the ATM machine near our local laundromat. I looked closely and saw two small monarch caterpillars among the leaves. One was about pencil width and an inch and a half long. The other was smaller, maybe an inch, and not quite pencil width. Both were active on the leaves. The leaves had indications that the caterpillars had been feeding. It was a hot sunny day, in the 90s. July 28, Farmington, Maine.