Buy six 22-week-old Black Australorp hens from Silver Bridge Farm. Holders of the world egg production record (364 eggs in 365 days, 1930 Australian ABA trials). Annual production: 250-300 large brown… eggs with cold-hardy, dual-purpose genetics. Jet-black feathers with brilliant emerald-green iridescence. NPIP AI-certified flock, Marek's Disease-vaccinated at hatch, dewormed. At point-of-lay. A consistently top-rated heritage breed for backyard flocks. Calm, easily handled. Nationwide USPS Priority shipping. Live arrival guaranteed. APA Standard of Perfection compliant.