I did wonder about guinea fowl ( pintard as they are called here in France - taste much nicer than chicken) or runner ducks . We dont have that fruit fly either ( yet

)
Also I was thinking maybe Josta berry being taller than Blackcurrent might be a good bet . Have you tried it ?
Was also thinking Red current ,gooseberry, Rhubarb. Although the latter has leaves that are quite poisonous. Have you integrated rhubarb with any animals ?
I did wonder about Cloud berry but I think we are too warm and also not acid enough for Blueberry either
David
Living in Anjou , France,
For the many not for the few
http://www.permies.com/t/80/31583/projects/Permie-Pennies-France#330873