Nearby pillagers will come to you if you blow the goat horn.

If there are pillagers nearby they will come towards you if you call them with the horn that makes raid sounds (the horn called “search“).
That is, if you have seen some pillagers near your base and you want to call them to fight against them, you just have to blow the horn and they will come where you blew the horn because they will think it is a raid.

Si hay saqueadores cerca vendrán hacia ti si los llamas con el cuerno que hace sonidos de invasión (el cuerno que se llama “buscar“).
Osea que si has visto unos pillagers cerca de tu base y los quieres llamar para pelear contra ellos, solo debes tocar el cuerno y ellos vendran donde tocaste el cuerno porque pensaran que es una raid.