Winter/annual rye is the same thing.

Fall planted Rye offers a food source in the fall (deer will only eat Rye if its less than6-8" tall) its best when dormant.

You can spring plant rye - We do it sometimes to seed in with clover as a nurse crop - more often we use oats though. Spring planted Rye is not very attractive to deer - and offers no food source in the fall.

Rye can be hard to find oin the spring too.