There is a liquid called ivomec. Also stuff called stronghold is used for poultry here. Those things kill everything inside and outside the bird, just be very very careful with dosing. Ash, and powder called drymaxx are used for lice and ticks, put it where your birds take dust baths. There is also a spray for lice, colombine spray. Hope this helps you abit Flo. I am happy you have birds of your own!
I am doing quite fine, and my birds keep me going even when I feel like poop.