FINCHforum

Always looking for new things to add to my canaries diet, I found oyster shell powder on ebay.
My birds love this stuff. Always keeping it supplied. Around $12/per lb. including shipping.

Seems pretty pricey to me.
Crushed oyster shells typically sold to feed to chickens are cheap. Less than $1/lb. These are in pieces about 1/4 inch and can be further ground down to a powder in one of those cheap windmill type coffee grinders.

I often provide a mix of pulverized oyster and eggshells.

ive been providing oyster shell grit for the last few weeks and its only in the past week that they have started eating it, buy it on e.bay i think i paid about £2 for 250g