Long-tailed Skua

These smallest members of the skua family make up in nerve what they lack in size, often feeding themselves on fish they've caused other birds to drop

Long-tailed Skua

Regio: Arctis

Bestemmingen: Groenland, Spitsbergen

Name: Long-tailed Skua, Long-tailed Jaeger (Stercorarius longicaudus)

Length: 40 to 60 cm.

Weight: 230 to 450 grams.

Location: High Arctic regions. Winters southern Pacific and Atlantic.

Conservation status: Least Concern.

Diet: Fish, smaller birds, small mammals, carrion, fruit.

Appearance: White belly, black wings, grey back. Black cap on head, yellow cheeks and nape. Long streaming tail-feathers. Dark bills.

How do Long-tailed Skuas feed?

Long-tailed Skuas are bullies, harassing other birds returning home after making a catch. They will cause the other bird to drop their fish where the Long-tailed Skuas can retrieve it.

During the breeding season they will rely more on hunting down the rodent population. They will hover over their prey, then swoop down to pounce and peck its victim to death.

Are Long-tailed Skuas social?

Long-tailed Skuas that are not breeding sometimes form small flocks so they can forage together.

How fast do Long-tailed Skuas fly?

Long-tailed Skuas can reach speeds of up to 50 km per hour.

What are Long-tailed Skua birthing rituals like?

Long-tailed Skuas reach sexual maturity at 3 years of age.

The breeding season begins in June. Nests are located on dry tundra. The nests are usually little more than a scrape in the ground, positioned to have a good view of the surrounding area. Long-tailed Skuas are highly territorial and will vigorously chase away intruders in their area.

How many eggs are laid in any given year is related to the abundance of rodent prey in the area. At most 2 olive-brown eggs are laid. In years with a low rodent count some adults will not attempt to mate at all.

Incubation lasts around 24 days. Chicks are able to leave the nest about 2 days after hatching, which allows them to run and hide in vegetation to avoid predators. Most of the rearing is done by the female adults while the males handle the bulk of the hunting and territory defence duties.

The juveniles fledge (are able to take their first flight) around 25 days after hatching.

How long do Long-tailed Skuas live?

Long-tailed Skuas live for about 9 years.

How many Long-tailed Skuas are there today?

Estimates are hard to find since the Skuas spend so much of their time at sea and their breeding numbers can take huge swings depending on the rodent prey population of any given year. Therefore worldwide population estimates range anywhere from 150,000 all the way up to 5,000,000 individuals.

Do Long-tailed Skua have any natural predators?

Long-tailed Skua eggs and young are prey for Arctic Foxes and various rodents.

7 Stupendous Long-tailed Skua Facts

  • Long-tailed Skuas are the smallest members of the Skua family.
  • Up to half of the Long-tailed Skua’s length can be made up of its tail (including its streamers). The tails can reach up to about 30 cm in length.
  • There are 2 subspecies of Long-tailed Skua:
    1. Stercorarius longicaudus pallescens – Greenland, North America, eastern Siberia
    2. Stercorarius longicaudus longicaudus – Russia, northern Scandinavia
  • The long streamers (extended central tail feathers) are only present on breeding adults. They are lost outside of the breeding season.
  • Long-tailed Skuas breed the furthest north of all the northern-breeding Skua species.  
  • Long-tailed Skuas are also the most widely distributed of the northern-breeding species.
  • Long-tailed Skuas spend almost all of their lives out at sea, returning to dry land only for breeding.   

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