I got Wazine 17 yesterday to worm my birds - my oldest is 6 and never been wormed. But the instructions are for 800-1600 birds... I have 9! So how should I go about giving it to them? How much? Should I put it in their water and confine them so it's the only water they get? Could I put it in yogurt or clabbered milk so they'll gobble it up? TIA for any input and advice.