email a friend
printable version
'Colony Guardians' are working with local communities to protect Hooded Grebe nesting sites

© Diego Punta Fernandez

The BirdLife Partner and Species Guardian Aves Argentinas and local Patagonian NGO Ambiente Sur have begun a pioneering new project to save the Critically Endangered Hooded Grebe Podiceps gallardoi. This has involved teams of ‘Colony Guardians’ who monitor and protect breeding sites.

Hooded Grebe Podiceps gallardoi breeds on a small number of lakes in the interior of Santa Cruz, extreme south-west Argentina, and winters on estuaries on the Atlantic coast of Santa Cruz. The main threats are nest predation by an increasing population of Kelp Gulls Larus dominicanus, predation of adults by introduced American Mink, and predation and competition for food resources from alien Rainbow Trout.

Conservation action is now underway to address these threats, led by Aves Argentinas (BirdLife in Argentina and Species Guardian for the grebe), and a local organisation, Ambiente Sur, who are working together to prevent the extinction of Hooded Grebe. They have carried out surveys that recorded over 700 individuals, and collected data on introduced mink. “Colony Guardians” have been established to work with local communities. These are local people assigned to protect nests from predators, and to collect breeding data. Their efforts have improved survival rates at a number of colonies.

Most importantly, a National Park encompassing much of the grebe’s breeding habitat has been declared, and a law passed to ban introduction of trout into the lakes.

Related Species



Compiled 2013

Recommended Citation:
BirdLife International (2013) 'Colony Guardians' are working with local communities to protect Hooded Grebe nesting sites. Presented as part of the BirdLife State of the world's birds website. Available from: Checked: 02/12/2015

Key message: Managing specific populations and addressing threats
Case studies