I have lost 4 young birds this week from this year's hatch. Two were d'Anvers and two were about six weeks old.
And I've treated the coop for mites since they have been found on 4 adults. I checked those lost birds...no mites. All birds have been ivomeced. But Beau and a CW pullet/hen have been bathed and dipped because their infestation was the worst I've seen. Beau has lost some weight so he and his pullet will be given some extras like yogurt, scrambled eggs, 20% protein feed and calf manna. Also some red cell in the mix.
Beau likes to take his harem to all parts of the yard around the house and into the garden every day. They also like the rolled oats and game feed the geese get so they visit the goose pen too. The sparrows have been everywhere. Working on making a sparrow trap to set up in the hen house.
I simply hate mites and lice and fleas on the dogs and flies and ticks and snakes and the list grows.....