The Black Australorp was developed in Australia where flock keepers needed a breed that would lay consistently even when the weather was very hot. Black Australorps have a single comb and are very cold hardy.
Peanut Head read on the internet that chickens need to be trained to lay their eggs in the nesting boxes and not where they poop. Which is, obviously, everywhere. So, apparently golf balls are going to trick them into not pooping in their nesting boxes.