Line up! Humboldt penguins counted at London Zoo annual stocktake

London Zoo staff sit by the Humboldt penguins' aquarium during annual stocktake, January 2, 2020.

The Humboldt penguin is a South American penguin with habitats among most of coastal Chile and Peru.

Humboldt penguins line up for annual stocktake at the London Zoo, January 2, 2020.