The Austronesian Comparative Dictionary

*kuak deep cry; bird with deep cry

PMP kuak deep cry; bird with deep cry

WMP
Malay kuak to low or bellow
Mongondow kuak cry, shriek, scream
Javanese kok exclamation of surprise, often combined with irritation or wonderment; a hen's cackle
Sasak kuak kaok bird whose cry can be heard before dawn
CMP
Manggarai uak shout from afar, call with a loud voice
OC
Gedaged kuák a bird; it cries a good deal, esp. in the morning