Day 1: Eyes closed; black down on head and sometimes spine; young are a little larger than egg.Day 2-4: Eyes closed; body weight has at least doubled; feathers begin to appear as dark areas on wings and head (day 4).Day 5-7: Eyes open as slits; feathers break through skin on wings and head; feathers begin to open (day 7).Day 8-11: Eyes wide open; primary wing feathers still opening; weight is 75 p