Yes, Catherine, tomato/tobacco hornworms become night-flying-only sphinx moths. Well, actually I've seen them flying in the VERY late evening, just as it's going dark, but I don't think your wood pewee will get one - the moth is as big as the bird! :)
Sherry

Thanks Sherry. This little guy is fearless! It has almost run into us when we're in the garden. And it sits on the fence, less than 2' away from us. Maybe we look like moths?
:)