They are precious!
So when you think of exchequer leghorns, ideally, that would be the 60/40 white/ black distribution of colors. And all feathers would be white or black. Not both colors on the same feather. But the breed is a baby breed, so to speak. we are so new. So we are still perfecting...
Serama tolerate confinement very well. They're plenty fine in a 32 gallon for now. I have up to three chicks in a ten gallon until three weeks old. Then they move to a 30 gallon. Then into a Guinea pig cage. So they're just fine where they're at for now. Looks like you take them out often...