Quick Quack Quentin

Quentin was a duck with a very quick quack.

'Quck!' said Quentin. 'What's wrong with me?'

Quentin's quack has lost its A. Do any of the other animals have one to spare? Not likely! Apes don't want to be pes. Snakes don't want to be snkes. Pandas don't want to be pndas or even pands. Will Quentin be stuck with a very quick quck?!