in the 1970's, just 20 of the birds were known to live in majorca.hey survived in the mountains, shielded from mass tourism. today, conservationists are working to reverse the decline of the black vulture population. with their plodding walk, scruffy plumage and hunchback, they did not appear half as majestic down on the ground. they are birds of prey who feed on carrion. all reasons for the longstanding prejudice against them. juan sanchez runs a sanctuary for injured will choose. he comes from south america where a close relative of the boulder, the condor, is considered sacred. >> i enjoy working with boulders. it is not that i identify myself with them, but their behavior is fascinating. they fulfill an important ecological function. >> like swans and geese, black vultures mate for life, making them difficult to breed in captivity. damaged eyes, broken wings, 18 vultures at the center. they are nursed back to health until they can be released again into the wild. the vultures are no longer hunted and killed like in the past, but they still fall v