I was researching Cuckoo Marans tonight and found out they can be sexed really young, Now I get to discover tomorrow how many roo's I have. The lighter color chicks are roosters and the darker colored chicks are pullets. For those else thats curious heres the link. Has lots a great pictures and who would've known Cuckoo Marans come in all colors. http://www.feathersite.com/Poultry/CGK/Marans/BRKMarans.html Color sexing Cuckoo Marans at 4 days: female on left Photos courtesy of Laura Phillips Looks just like my chicks.