I have two isa browns and 1 barred rock. I wasn't expecting eggs for another couple weeks but surprise.... Got home from work and one of my isa browns laid not 1 BUT 2 eggs today. Was so excited but totally unprepared. We have had the nesting boxes blocked off until they were ready to use them.. Now a little worried that the isa who laid today wont use the boxes. Hope i'm wrong. Now that i see she laid eggs though it all makes sense. Yesterday morning and this morning she was up before i went to open their hen house for the day and my hens are never awake before i wake them.. then this morning i went to pet her and she squatted and stomped her feet.. Thought it was strange! But then i get home from work and she laid two eggs.. Totally unexpected to see any at all but two. Craziness!!