Someone posted long ago that their peas did not like rabbit food, but i never tried it, i got plenty of green stuff here for mine
For those of us who don't live in the semi-tropics and would like to add some greens to the feed, soak the alfalfa pellets in water for a few hours so they can fluff up and add some of your regular feed to it, add some more water and stir. Your birds might be hesitant at first as it looks like they have already ate it and crapped it out, but once they taste it they will really like it.
My standard feeding starts out with two parts alfalfa pellets, one part of rolled oats, one part cat food, add water. When it is time to feed I add four parts gamebird feed, more water and stir with a paint paddle. On alternating days I will add mackerel, bananas, or chopped fresh veggies and fruits.