Stumpknocker is a term used to describe a species of fish. It is also known as redbreast sunfish or river bream. Other common synonyms for stumpknocker include warmouth, redspotted sunfish, and spotted sunfish. These species are all members of the sunfish family and are commonly found in freshwater habitats throughout the southeastern United States. Stumpknockers have a distinctive dark spot on their gill cover and can be identified by their reddish-orange breast. These fish are popular among anglers for their aggressive feeding behavior and are often caught using live bait or lures. Whether you refer to them as stumpknockers, warmouths, or redbreasts, these sunfish are a prized catch for many fishermen.