kattabelly
Crowing
As far as I know, carbonate is slower acting but should do in a pinch unless you have a reason to believe that bird has a problem processing calcium in carbonate form.Sadly we don’t have the advantage of big mainland supermarkets, is calcium carbonate ok? I think our local co-op will have it. If I order online might not come I time. Thank you!
("Not mainland" makes me really curious as to whereabouts you are but no bother at all if you'd rather not be specific!)

