does anybody here keep australorps? and do they have some 'older' examples of these? ive been offered a large flock (1 roo and 10 hens) for a nice price...but they are already 5 years old. the owner assures me from the 10 hens he gets 7-9 eggs per day still. do australorps lay so well..even as they start to get a little older?? or is he trying to pull a fast one on me?