Grand River, Kitchener, Ontario, Canada A Rock Bass persistently defending its nesting site against an encroaching Smallmouth Bass in the evening

Grand River, Kitchener, Ontario, Canada A Rock Bass patrolling and defending territory aggressively, clearing a nesting site and inspecting the camera early in the evening

Grand River, Kitchener, Ontario, Canada A Rock Bass defending territory and persistently clearing large amounts of debris away from in front of the camera in the afternoon

Grand River, Kitchener, Ontario, Canada A Rock Bass swimming closely in front of the camera and eagerly clearing debris with its mouth and tail early in the afternoon

Grand River, Kitchener, Ontario, Canada Rock Bass passing by the camera several times and chasing each other early in the morning

Grand River, Kitchener, Ontario, Canada A trio of Rock Bass interacting and displaying some territoriality with each other early in the morning

Grand River, Kitchener, Ontario, Canada A nice close up of a Rock Bass holding position in front of the camera very early in the morning