Oxpeckers have sharp claws and short legs that allow for attachment to and walking on mammals where they peck for parasites and ticks. The birds in slideshow image 5 were cleaning an open wound on the giraffe's neck. The image above of both red-billed and yellow-billed oxpeckers was taken in Kruger NP (So. Africa) in April 2011; roll your cursor over the enlargement to see another.