the new answer to lice is diametacious earth food grade repeat food grade, google it to find out what and how it does it .it is not a chemical or poison. dust the birds very lightly repeat--very-lightly.
mainly lightly dust the perches ,put some on the nesting material and throw a cup into their dust bath. in 2 days no lice and they wont reapear if you lightly dust the perches and nestboxes every month or so .you can also mix it into their food , and it punctures the worms and kills them by dehydrating them. it kills any thing that doesn't have a skeleton .it is what they use to eradicate bed bugs. but dont try and use the pool filter stuff, it is poison. try it on an ant nest ,,
mainly lightly dust the perches ,put some on the nesting material and throw a cup into their dust bath. in 2 days no lice and they wont reapear if you lightly dust the perches and nestboxes every month or so .you can also mix it into their food , and it punctures the worms and kills them by dehydrating them. it kills any thing that doesn't have a skeleton .it is what they use to eradicate bed bugs. but dont try and use the pool filter stuff, it is poison. try it on an ant nest ,,