Zander does a low-pitched yip. Yelp, I guess? I think he sucks on his tongue, too. Like he's trying to talk...but there's PB in his mouth. Just odd.
He also lets out a super creepy, heart-stopping howl every now and then that makes you want to cover your ears and scream. Just that freaky to hear in the middle of the night. Can't even describe in words...