Flightless fancy

Let's hear it for our poster penguin on Penguin Awareness Day. This cheerful chap is an Adélie penguin, one of 20 known penguin species and a common sight at this time of year in parts of Antarctica. Breeding season for these birds begins by October, when they gather in colonies of thousands, coupling off and constructing nests made of stones.
© Nick Garbutt/Minden Pictures