I went to a swap with silkies in mind and came home with moderns. They have also been an interest of mine but i have not seen them around in my area. I am currently feeding them 50% gamebird turkey crumble 26% and 50% purina flock raiser 20% crumble. I am getting a little concerned because they seem to have lost weight since i have gotten them a week ago. Should i put them on something else?