I was interested in the is stuff until I read the info on this post: https://allbirdproducts.com/products/avian-insect-liquidator-ready-to-useVetafarm Avian Insect Liquidator. It's fantastic stuff and gives up to 6 weeks protection from external parasites. It's safe even on delicate finch eggs and chicks.
where it says that it is NOT for use where the bird or eggs are to be used for consumption!
I admit I did not look any further into this product after reading this so I am interested in knowing if this information is wrong.