My secret weapon for extra protein in the winter:
1/2 layer feed (16% protein)
1/2 turkey growth feed (23% protein)
mixed with a bit of cracked corn and BOSS
and that is what's in their feeders during the winter.
they have access to crushed oyster shell and grit and go through quite a bit of both actually.
I have to be careful with the bird suet cakes, they will plow through one PER DAY (there are only 22 birds in that pen!)
now, they get a warm breakfast every morning of cooked mixed grains, pureed fruit and veggies, whatever leftovers we have from the night before and as often as possible, raw meat. they go CRAZY over meat, in any shape or form - like little raving mad velociraptors!
I guess they're telling me that's the protein they prefer
ps: I get tons of super fat eggs every day from girls of all ages