The Corzón birdwatching trail Activity · Mazaricos, Xallas, A Coruña Image of Mazaricos, not of the place itself. A route fitted out in the parish of Corzón, in the surroundings of the Alto do Castelo, where more than a hundred bird species have been recorded. It is reached in a few minutes from the course of the Camino. Photo: Lameiro (CC BY-SA 4.0) What to see and do in Mazaricos