Could this be an a moth? Any guesses as to what kind?

And if so, it a cocoon?

Thank you! A few questions: What should we keep him in? I will be leaving for a week or so. Is there any way to know when he might emerge?

Awesome!! So lucky!!

Where are you located?

Definitely a luna or polyphemus moth. The fact that it's moving shows it's alive - congrats!

I've never found a way to tell when a big moth will emerge. I'd leave it in a protected place outside. If it emerges in the house, it'll likely be dead by the time you get back. Hopefully, you'll get lucky, and it won't emerge until you return.

Sherry

My experience with Polyphemus finds them more long oval,smooth

And hard surface than the Picts appear to be.

Luna cocoons are rather thin and papery and look like the Picts.

Whichever you get they are both beautiful!

Be sure you release it at night if you happen to have it inside

When it emerges.

DD

Looks like luna. Did it hatch?