There is really no reason to give the birds a bath. Giving them the wormer twice at 10 day intervals should take care of any roundworms (for some other types of worms you would dose 5 days in a row). The correct dosing for Safeguard is .23ml per pound of bird weight. Weigh each bird (an inexpensive digital kitchen scale works well) then draw up the correct dose into an oral syringe (tractor supply stores carry them or you can ask any pharmacist for oral syringes). Give the dose to the bird orally (in the beak) and let it swallow. Give .5ml at a time and let the bird swallow it. Here is why "pea sized" is not a good dosing method:
https://www.backyardchickens.com/th...-sized-blob-of-horse-paste-de-wormer.1141545/
This is a good article on giving medications safely orally:
https://www.backyardchickens.com/ar...dications-to-all-poultry-and-waterfowl.73335/
https://www.backyardchickens.com/th...-sized-blob-of-horse-paste-de-wormer.1141545/
This is a good article on giving medications safely orally:
https://www.backyardchickens.com/ar...dications-to-all-poultry-and-waterfowl.73335/