We also have a fish pond, and a crane was trying to get at our Koi fish. We bought a Crane decoy from amazon for $30. Not sure if this is really why,but since we put the decoy up we have not seen a hawk in our woods/ yard since. They would usually visit at least once a week prior to the decoy.
Pine shavings worked the best for us. It really isn't too messy if you keep up with it. I would just use a shop vac and re place the bedding every 5-7 days or so.
They are growing fast ! Still doing great except Dodi has pasty butt issues I have to keep a close eye on. So I just started them on some probiotic water and introduced some grit .
We are getting our flock in 3 short days. We're getting 7 different breeds including Ameraucana , Buckeye, Buff Brahma, Buff Orpington, Golden Laced wyandotte, Cuckoo Marans, and an Olive Egger. We are very excited and can't wait to see all their personalities and fit within our family.