Hummingbird and Butterfly Gardening: Cold hardy Monarch caterpillars, 1 by JaxFlaGardener

JaxFlaGardener wrote:
On my morning stroll through my garden today, I counted 5 fat, healthy Monarch caterpillars on my milkweed (Asclepias tuberosa) plants. We had temperatures in the mid-20s F last week. These cats are big enough that I know they must have been around in a fairly good size prior to the freeze. I found the one pictured below within a day or so after the freeze. I hadn't noticed the others until this morning.

They have just about eaten up the milkweed plants on which they are feeding. Would it be a good idea (or not) to relocate them to milkweeds with more leaves?

Jeremy