Hi - I'm looking for ideas on roosts and nesting boxes my coop is home to 15 chickens (just babies now) and 4 ducks. (4 silkies, 3 mille fleur,8 brown egg layers).The coop is 16 x 14.The ducks have about a 4 ft section (closest to the door - since they are messy and don't mind the cold as much) and the chickens have the rest. It is seperated by plastic chicken wire which we use as a seperator and a door to let the chickens out to the run (there's one big double sided door which we keep open during the day).The run is 16x16 and is also covered by plastic chicken wire with supports to keep the snow from making it sag to much. My questions are how many nesting boxes will I need and how many roosts? I think I would like to put the nesting boxes along the side wall so they are easy to get to and clean and put the roosts along the back wall in descending order.My coop height is 8ft how high and how big should I make the roosts? Also, how low should I start the nesting boxes and what size should I make them? Should I do double or triple rows of nesting boxes? Also should I put roosts outside in the pen? Right now since they are only young yet we are using cardboard boxes as both roost and a place to hide out. Eventually I'd like to make the pen bigger with a stronger top covering than won't sag in winter Any suggestions on what to use? Also, if I use 2x4's for my pen when I enlarge it how do I get them to stay straight in the ground? Currently I 'm using metal fence posts banged deeply into the dirt. I'm thinking too on getting some ornamental chickens will they roost along with the egg layers.Thanks for any help anyone can give me I am new to chickens and want only the best for my flock.Their part of the family now so I want them to be happy and safe.