Over in Paracus along the water front there is a gentleman that has a few trained pelicans. He feeds them small fish and has them flapping their wings, scwacking, and begging for the fish. All this so the tourist can take photos or feed the bird themselves. Of course he expects to be given money to do this, but for the equivalent of 33-66 cents, I think it is worth it, because they are huge and entertaining to watch.
A side note – I like the 3rd photo where the pelican is just hanging out with his amigos.