A black-browed albatross (Thalassarche melanophris) looking at its chick, Saunders Island, Falkland Islands, South Atlantic, South America

Four month old Harpy eagle chick (Harpia harpyja), testing its wings in the nest, Alta Floresta, Amazon, Brazil, South America

Four month old Harpy eagle chick (Harpia harpyja), testing its wings in the nest, Alta Floresta, Amazon, Brazil, South America

Nazca booby (Sula grantii) downy chick in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Nazca booby (Sula grantii) downy chick stretching its wings to gather strength for flight in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Black-browed albatross (Thalassarche melanophrys) chick, close-up, on the nest at nesting site on New Island, Falklands, South America

Black-browed albatross (Thalassarche melanophrys) adult feeding chick at nesting site on West Point Island, Falkland Islands, South America

Great frigatebird (Fregata minor) chick in the nest in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Adult king penguin (Aptenodytes patagonicus) in the act of feeding chick on South Georgia Island, Southern Ocean, Polar Regions

King penguin (Aptenodytes patagonicus) in downy plumage (okum boys) on South Georgia Island, Polar Regions

Wandering albatross (Diomedea exulans) chick at breeding colony on Prion Island, Bay of Isles, South Georgia

Adult female upland goose (Chloephaga picta) with goslings on Carcass Island in the Falkland Islands

Wandering albatross (Diomedea exulans) chick at nest site on Prion Island in the Bay of Isles, South Georgia, Polar Regions

Adelie penguin (Pygoscelis adeliae) adult feeding chick at breeding colony at Brown Bluff, Antarctica, Polar Regions

King penguin (Aptenodytes patagonicus) adult and chick at breeding and nesting colony at Salisbury Plain, South Georgia, Polar Regions

A young Tawny Owl Chick on a woodland floor, Ambleside, Cumbria, England, United Kingdom, Europe