It includes worms, small fish, all kinds of terrestrials and aquatic insects, fish eggs and even a small bird or mammal. Most stream bows get the majority of their nutrition from insects. Therefore, they are a great target for fly fisherman. Sometimes, hardware is the best choice. Spinners and spoons do the trick.
Rainbows enter streams to spawn in the spring, while the brook trout spawn in the fall.
Rainbows are also relatively easy to catch, as they will eat almost anything. Bait works well. Rainbows find worms irresistible. Minnows are also a good choice, as well as, corn, cheese and macroinvertebrates. Figure out what works best for you.