Mine stays to herself most times at night, during the day she is always with the BM.My 3 do not roost either. I think it is because Stumpy can not roost since his one leg is dislocated at the knee. They lay in a pile together.
I don't have one that close to the ground so I will try that and see if it makes a difference, thanks for the ideal.How low is the lowest roost. Mine is 6", than 18". So he hops up to the 18" roost. My bantam brahmas like the 6" roost. They like low to the ground. Try a 6" roost. Most Cochin and brahma have a difficult time with high roosts and ramps, my brahmas refuse to use a ramp.