Rare Peruvian Diving-petrels nesting on Chañaral Island following decades of absence
A growing chick demonstrates the success of the project to restore this threatened bird on the largest historical nesting site in Chile.
For the first time in more than 40 years a Peruvian Diving-petrel chick has hatched on Chañaral Island, representing a significant milestone on an island once devastated by invasive species. Team members from nonprofit Island Conservation, working in partnership with Chile’s National Forestry Corporation (CONAF), The Nature Conservancy and Universidad Católica del Norte, discovered a downy chick in a naturally dug burrow – a breakthrough that offers hope for a species considered “endangered” by the International Union for the Conservation of Nature (IUCN) just two years ago.
An Island Healing From Destructive Invasive Species
Peruvian Diving-petrels (known locally as “
yuncos”) are small ground-nesting seabirds endemic to the Humboldt Current System that flows along the western coast of South America. Chañaral Island, located just a few miles off the coast of Chile, once supported what may have been the world’s largest population of the species before invasive rabbits and foxes were introduced many years ago.
Coral Wolf, Conservation Science Program Manager at Island Conservation, explains the negative impact this had over the years:
“Rabbits and foxes decimated the island’s sensitive desert landscape. Foxes fed on
yuncos, while rabbits ejected them from their nests, and stripped bare the herbs and shrubs. As a result, Diving-petrel numbers decreased dramatically. Eventually, no Diving-petrels were living on Chañaral, and within the region they could only be found on a handful of islands. They were at risk of global extinction.”
However, in 2013, in an effort to restore and rewild the Humboldt Penguin National Reserve, Island Conservation and CONAF began a project to remove the invasive rabbits from Chañaral and neighboring Choros Island.
“Since the invasive rabbits were successfully removed in 2017, and with no foxes on the island for many decades, we have been focused on re-establishing the Peruvian Diving-petrel population and building resilience for them and the many other species unique to this region,” says Wolf.
PRESS RELEASE: Rare Peruvian Diving-petrels nesting on Chañaral Island following decades of absence