Chilean Flamingos are social birds that feed and nest together in flocks ranging from a few individuals to tens of thousands. They require at least 15-18 birds for successful breeding. Similar to other flamingos, nesting is synchronised and is probably determined by the amount of food available for the nesting female and the chicks. They are a large flamingo, and closely related to the Greater Flamingo and the Caribbean Flamingo. You can distinguish Chilean Flamingos by their greyish legs and pink joints, and by the fact that they have more black on their bills. Chilean Flamingos are classified as ‘Near threatened’ because they are expected to suffer a rapid population decline due to egg collecting, hunting, and habitat loss due to human activities such as mining and tourism.