Anyone know how long Marans and Araucanas typically live/lay? I love colored eggs and am trying to figure out how many of each I need to have and at what intervals I need by acquire additional birds to maintain a supply of 24 eggs per week. I plan on keeping all my birds for as long as they live so I need to understand what my peak population is going to be. Thanks!!! P.S. Does anyone know of any charts/graphs that show the egg production over time of various breeds... It would be a very handy tool for planning coop capacity!