Hello! I've read up on what I can for this, but I'm still worried. I have 3 ducklings and 2 goslings that are 4 days old (hatched Monday; arrived Wednesday). They're on Mazuri starter. They're on pine chips. I occasionally find them trying to swallow longer bits of thin wood strips. It seems early for grit, but I wonder if I should grind some chick grit finer and offer it now? I was planning to introduce fine grit and greens at a week initially. Any thoughts appreciated!