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

Grand River, Kitchener, Ontario, Canada A pair of Rock Bass displaying nest building activities and aggression towards intruding fish late in the evening

Grand River, Kitchener, Ontario, Canada A Rock Bass building a nest and chasing away intruding fish several times during the afternoon

Grand River, Kitchener, Ontario, Canada A Rock Bass defending territory against another Rock Bass and displaying nest building behaviour

Grand River, Kitchener, Ontario, Canada Close video of a Rock Bass swimming by the camera several times in the morning

Grand River, Kitchener, Ontario, Canada A Rock Bass swimming closely by and around the camera several times and opening its mouth wide in the evening