Is killing an animal that is forbidden to kill among the major sins, like other kinds of killing?

The prohibition of killing frogs, ants, bees, hoopoes, and shrikes has been established, and scholars have differed on whether it is considered haram (forbidden) or makruh (disliked). If it is deemed haram, then it falls under minor sins, and is not equated with the killing of an innocent soul, which is among the major sins.