They ate themselves out of house and home, and they have disappeared, hopefully to pupate.
The party lasted several days, and they left the place trashed. Not a leaf or blossom on it. The gardener could have pulled the dill stalk that remained, but left it alone. Perhaps because our weather has been cool, it’s sprouted new leaves and a blossom.
Little lesson: Don’t panic. Things recover. And there will be Monarch butterflies soon, assuming the mockingbirds didn’t pick them all off.