A hollow in a riverbed made by a trout or salmon to spawn in.
- With all the water rushing down our rivers and streams, some of the redds might have been washed out, but nature has an excellent habit of looking after itself.
- During the courtship, which can last up to several hours, the male vibrates and crosses in front of the female, while the female is preparing for spawning by digging the redd.
- There is a relatively high amount of territorial behavior found in brook trout and territory is established shortly after emergence from the redd.
mid 17th century (originally Scots and northern English in the sense 'spawn'): of unknown origin.