Can ducks have this henhouse reserve block?

[picklestheduck]

Got this for my chickens when I was at the farm store because it looked cool but just realized that I should have checked if my ducks can have it as well? It says formatted for many breeds, but I just want to make sure it’s safe.

 

[Ilovemychicks08]

Im interest if they can have it to, because i get a scratch block every year for my chickens.

 

[Brooks_]

My question is can their bills even get pieces off of a block type treat?