If you know of a sprouting resource that isn't provided here, please email me with the URL. so I can add it here! (I've purposely omitted the trillions of sites that only sell sprouting seeds and/or supplies, but contain no information from which we can learn. Maybe I'll add those at some future date.)
These sites are in no particular order, and I don't necessarily agree with every word on every site. Nor are all of these sites specifically about sprouting for birds. But each of them has valuable information, and can contribute to an overall understanding of sprouting. Enjoy!
Kitchen Garden's nutritional information page; Kitchen Garden's sprouting guide for long sprouts, such as you'd use in a salad for people rather than the germinated or short sprouts we feed our birds but still has good information.