Hi Nonny in Qld,
That is such an interesting question.
I got this from an internet site:
Product Facts
Black Australorp Chicken Info
Adult Weight - Male: 8.5 pounds ; Female: 7.5 pounds
Color - Black with greenish purple sheen, Large red comb
Purpose - Dual Purpose - Egg Laying and Meat Production
Egg Production - Prolific: 250+ per year
Egg Color - Brown
Country of Origin -Australia
Here is the link:
http://www.efowl.com/Black_Australorp_Chickens_p/1053.htm
Never have I purchased from this company, but I really appreciate the thorough description that they provide of the breeds that the sell. Now, I guess a coversion to kg, and will they weigh the same in the southern hemisphere? :O)
I am going to take one of those platform scales out, and tell each of mine to stand on it to get their monthly weighing. Mine (not Australorps)weigh in at about 4 to 4.5 pounds. I'm just so sure that they will cooperate if I just hold a meal worm just out of reach. Now seriously, the first time I weighed them I weighed a towel, then wrapped each one in the towel, Put each on a scale, took the weight and subtracted the towel, but I know it was not too accurate.