It does not have to be hard to prepare bird food every day. If you use the correct storing methods you can do it in bulk and cut down your kitchen time a great deal. Once you get yourself a routine going it does become a lot easier.
Storage containers are a must if you need to do a lot of fresh foods. If you get the right containers your food will last refrigerated for 1 week. I use plastic containers with breathable holes in the lids and removable grates in the bottom. These sort of containers allow for the juices and liquids to settle to the bottom without letting the food touch it so it doesn't ferment in the juices and go off quickly.
But regardless of how much longer than a week your fresh food is keeping, you should not keep it longer than a week as bacteria does grow quickly of fresh sprouts and fresh cut fruit and veg.
Smaller grates in the bottom will cater for sprouted foods while the larger ones are suitable for fruit and veg mixes.