If you can keep a healthy diet by frequently providing greens to your flyers the traditional feed is 100% wheat for the flyers.
If not then any feed mix with the minimum amount of oil would do.
Corn is first to go. Then if you can, I would stay away from mixes with flax (good seed to have for breeders though), safflower seed, sunflower seed, millet, Nyjer (thistle), milo and similar.
Peas (including Mung beans) are OK since the protein ratio is more balanced.
Lentils and radish seeds are fine.
If the feed includes oily seeds then I would also buy a seperate bag of wheat or oats and dilute the feed with them.
If you can find dried green peas it would be perfect even by it self.