Oh no...this is your contest Gary, so you have to decide! haha!Rules committee will be @aart since she does not have any April chicks...
Something to think about tho, eh?
But.....I would think that a flock is more than one.
You're already allowing an exemption on more than 'one kind'.
"a number of animals of one kind, especially sheep, goats, or birds, that keep or feed together or are herded together."