"Galo de Barcelos" as we Portuguese say, is a popular symbol from our Northern folk and eventually to all of Portugal. It's a black statuette shaped like... well... like a rooster, decorated with red hearts and other colourful shapes, usually standing on a blue platform as the picture attached shows.
It's connected to a silly legend that tells of a pilgrim being accused of a serious case where he was innocent. No matter how much the pilgrim would tell the authorities he was innocent, he was sentenced to be executed. As a last try the pilgrim asked to talk to whom declared him guilty and since it was his last wish, they did exactly that. The authorities brought him to the magistrate’s house while he was having a banquet with friends. The pilgrim swore his innocence one last time and, pointing at the roasted rooster at table, claimed his innocence was as sure as the rooster would crow at the time of his hanging. They laughed, but kept themselves from eating the rooster, just in case. You can guess what happened next. Right at the time of his hanging the rooster crowed, and he was released.
Worth saying, there are other versions of the story, but mostly they tell of the same.