I love Isa Browns but won't get them again. They are so friendly though. Mine all ended up with reproductive issues around 2 years old. They laid so much their body couldn't keep shells on the eggs. They ended up with lash eggs after 2 years which is pus. The vets said it was from irritation in the ovuduct. They are the only breed I've had that had this issue. My one Isa laid 3 eggs at once multiple times which was sad to watch. Two of these would be shell less. They are bred for rapid egg laying but it takes years off the lifespan. I hated having to put them to sleep I used to hold all 4 at once and have not found more loving hens than that breed.They will be 2 years old in August. Could they only lay for 2 years?