These are Humboldt penguins, native to the coast of Peru and Chile. The species is listed as 'vulnerable' so the breeding of birds in zoos is managed to ensure a healthy gene pool. Every single bird has a unique pattern of spots on its belly, a bit like we have a unique fingerprint.
On land, they are ungainly; waddling from side to side as they shuffle across the rock.
In the water, it is a completely different story. The penguins are amazingly agile and can swim at speed, essential for catching fish; their sole food!.
They are also curious. We watched this guy through the underwater window. He was definitely putting on a display just for us, turning back and forth on his side of the glass, surfacing for air and then returning to dazzle us again. As soon as we moved window, so did he!
What an entertainer!