I travelled to the most remote island in Mexico's Gulf of California, Isla San Pedro Martir, to assist a BBC Natural History film crew in documenting the interaction between Blue-footed Boobies and an endemic lizard. The island is home to one of the largest booby colonies in the world, hosting approximately 200,000 blue-footed and brown boobies in an average year. We were there during the birds' nesting season, although the colony had very low nest density due to the impact of ongoing El Niño conditions.
San Pedro Martir was mined for guano in the early 20th century, causing permanent changes to the surface of the island. The remains of rock walls built during the mining operations are still present today.