scarecrow

A yukkuri repellant in the form of a dead/dying yukkuri, usually left hanging on a stick. Generally it's an abused yukkuri invader made for the purpose of deterring subsequent invasions.

Dead/dying yukkuris emit a "death stench" which only yukkuris can smell and they find it uneasy so it serves as a repellant to other yukkuris. Dying yukkuris are usually better as they can last longer.

For the more popular dying yukkuri variant, they usually have some mechanism to keep the dying yukkuri barely alive for as long as possible, such as an orange juice ampoule