A buen árbol te arrimas…
We bark up the wrong tree when we select the wrong person to ask for a favor or when we direct our efforts in the wrong direction.
During the colonial times in America, raccoon hunters used to go accompanied by trained dogs which chased the preys around the forest. When the raccoons climbed up into a tree, the dogs stayed below barking up so as to tell the hunters, “Here it is”. But sometimes they didn’t notice that the animal had already escaped by jumping into a nearby tree. When the hunters arrived and saw no raccoon, they said that the dog had been barking up the wrong tree.