I've had the same exact experience with little Paul Newman. I'll here him croaking, come over to look at him and his eyes will be closed! Maybe they're just so tired that they don't bother to open them?

My Tiger Legs croaked for the first time last night, so loud they woke my rock of a boyfriend up! It was incredible, they went on for at least thirty minutes, just croaking on and on and on. I heard some softer sounds, so I'm pretty sure both the male and female are croaking to each other. So cute! XD Sorry, just thought I'd share. If I can get them on video I'll post a thread, their bark is so strange! You have to hear it for yourself.