Fenbendazole dose for roundworm is 50 mg/kg of body weight, 2 doses 10 days apart. 1 kg = 2.2 lbs. Your capsules only contain 6.7 mg per capsule. That is going to be a LOT of capsules per bird. The Safeguard liquid goat wormer or the horse paste will be much easier for you to dose them with as it contains 100 mg/ml of fenbendazole. Both of those are dosed orally, that way you know each bird got the correct, and entire, dose. Under dosing can lead to medication resistant parasites. For some other types of worms the Safeguard dosing is that same dose for 5 days in a row. Again, that would be a LOT of those capsules to get the dose correct.
