Flock Block from brewer's grains?

[balloonflower]

DH brought me a 5gal bucket of spent grain from a coworker. My seven girls love them, but I was looking for a way to keep other than freeze (no extra space now). Can I just mix in a pan with a binder and bake into blocks? What should I use to bind?

 

[CuzChickens]

Can you look up recipes for suet? You can get ideas there for how to bind them and extra goodies to toss in.