Oxpecker and Zebra, South Africa
http://photography.nationalgeographic.com/photography/photo-of-the-day/oxpecker-zebra-south-africa/
Oxpecker ウシツツキ
Oxpecker and Zebra, South Africa
http://photography.nationalgeographic.com/photography/photo-of-the-day/oxpecker-zebra-south-africa/
Oxpecker ウシツツキ