This morning, after feeding the fish, I found a single Monarch caterpillar on the Marsh Milkweed by the pond. I checked the other plants in that area and in the garden, but so far, this is the only one.
Monarch caterpillar on Marsh Milkweed (Asclepias incarnata)
And, a closer look. He's maybe an inch long. Fingers crossed that he'll survive and make it to Mexico!
Monarch caterpillar on Marsh Milkweed (Asclepias incarnata)