The agent has acted tiptop and our two chickens are now probably even happier, as we are. After a single application of the little temptress disappeared. It is good that the means for the animals (and their people) is safe, so you can leave it with the shells and among the shavings. Would we buy it again. The only drawback: The customs clearance for delivery in Switzerland are relatively high (post -) - accrued charges.