I've no idea what the cost of harrisons is over there but it really isn't that expensive if you buy it in big bags and freeze it. I feed two birds on it for literally less than £4 a month, I could probably do it on even less than that if I bought the 25lb bags.
I imagine between them they would eat roughly what a sennie would eat. In addition to that they get seed, seed sprouts, sprouted or cooked bean mix, fresh fruit and veggies plus occasional small amounts of healthy human food.




