South Polar Skua

• It is one of the very few birds observed at the geographic South Pole, and it also migrates in the austral winter as far as the waters of Greenland and Alaska: few species in the world cover such an enormous span of latitude.
• Both chicks from its two eggs rarely survive: the elder usually attacks the younger systematically until it is gone, an obligate siblicide common in several seabirds.

Skeleton type

Vertebrate - internal bony skeleton (bird)

Habitat and environment

Ice-free coasts and areas of Antarctica; in winter it migrates to the open sea of the northern hemisphere

Sexual maturity

5 years

Gestation / incubation

28 days of incubation

Litter / clutch size

2 eggs

Sources consulted: Wikipedia (es): Stercorarius maccormicki

The pins mark the parks where its presence is documented.