Sirenhead

The Sirenhead is a species of large mummion that creates loud sounds to attract Pikmin.

=In fanon games=

In Pikmin: The Insect Gourmet
The Sirenhead is a miniboss in Pikmin: The Insect Gourmet. It makes sounds that are meant to gain the attention of leaders and Pikmin and attract them to it. When close enough, it can grab and eat them, or simply crush them.