The reason might be tied to some sort of conflict or misunderstanding. Maybe the little monster saw the bird as a threat or thought it had something the monster wanted. Without more context from the story, it's hard to say for sure.
Maybe the little monster was having a bad day and took it out on the bird. Who knows what goes on in a monster's mind!
It could be that the bird did something to provoke the little monster. Or perhaps the monster was just plain mean. There could be all sorts of reasons in this fictional tale.
Maybe the little monster was hungry and saw the bird as food.
It could be a moral tale short story. The gremlin's act of killing the bird could serve as a lesson about the consequences of bad behavior or the importance of respecting life.
It could be that Joker posed an immediate and extreme threat to the safety of many, forcing Superman to take such a drastic action. Or perhaps there was a twist in the storyline that led to this unexpected turn of events.
Superman killing the Joker can happen when the situation gets really intense and justice seems to demand it. Maybe the Joker has caused so much harm that Superman feels he has no other choice. However, this goes against Superman's usual moral code, so it's a big deal when it happens.
Maybe it's part of a complex plot twist or character development. The black hat could have motives that haven't been fully revealed yet.
Well, it could be due to a build-up of frustration and a sense of hopelessness in trying to reform the Joker. Also, maybe in that particular comic's storyline, the circumstances are extreme and Batman makes a desperate choice.
It could be due to a complex web of circumstances and motivations within the comic's storyline. Maybe there's a threat that forces Batman to take such a drastic action for the greater good related to Superman.
Maybe it's for a festive touch or to add some holiday cheer to the character's look.
Batman typically refrains from killing the Joker in the comics. This is because Batman believes in justice, not vengeance, and killing would go against his principles. Also, keeping the Joker alive creates ongoing story arcs and challenges for Batman to overcome through non-lethal means.
Yes, the Joker is known for killing people in the comics. He's a very violent and unpredictable character.