Hey! I just got my very first ducklings this morning! I agree with you...its pretty hard to find info on ducks (or any waterfowl for that matter) compared to the plethora that is out there for chickens, but what I have come up with treats wise is that they will benefit from the same things. I'm actually growing extra herbs this year just for the Duckies and will having them growing right next to their coop so its easy to pick and throw in for them to nibble on. Sage wise, I have started my own sage plants under grow lights a few weeks ago (I LOVE sage...so much one of my Cuyuga's is named after it!!!!) but you should check out a local nursery. Last year I found sage plants at mine I go to in Missoula for a great price, but would probably wanna pot them for a few months before letting the gals at it free range so it can get big enough. I am also growing them Lemon Balm for in the coop ( suppose to be a stress reliever, antioxidant, repel rodents, AND keep it smelling decent!...and easy to grow, mine sprouted within a few days) Parsley, Basil (another of my ducks names), Oregano, Mint, and some other easy to grow herbs. Anyone else have any input?!?!