Thanks for your quick reply! They don't seem to be trying to get away. After quite some time, I did just see one with his beak open, but the rest are laid out, sleeping, I guess. LOL
I rigged up a heat source with two 25-watt bulbs, but knew they weren't really warm enough, so I was finally able to get to TSC for a heat lamp. Now, I don't know if they're just so happy to be warm that they are laid out comfortably, or if they're too hot....?