Hello Langdon and welcome aboard!

Sounds like you've got great plans and lots of work ahead - how much land have you got? (I warn you in advance that we've got land envy!)
Our cockerel Hector is also losing his tail feathers - it's most likely just the moult at this time of year. It's all about resting the reproductive system and restoring healthy levels of nutrients and recovering zing (a technical term). You'll also notice he loses interest in his hens - he'll be infertile during the moult so doesn't bother them.

In a couple of months he'll be back to his best. Rosemary gives our chooks extra sardines during the moult on the basis that the oil will help with the new feather growth.
Hope this helps,
Dan