Savage Three (Fango bollente). Vittorio Salerno, 1975.
Edition screened: Included on Arrow Blu-ray box set Years of Lead: Five Classic Italian Crime Thrillers 1973-1977, released 2021. Italian language with English subtitles. Runtime approximately 85 minutes.
Summary: Killing of laboratory mice; pheasant hunting.
1) A group of mice in a plexiglass box are incited to attack and kill each other, 4:10-4:48. We see the mice launch into a biting frenzy before they collapse dead and bloody.
2) Two brief and typical images of pheasants being shot during a hunt, 1:02:24-1:02:30 and 1:03:14-1:03:25.