Stercorarius

Trivial name Latin name
Skua Stercorarius skua
Pomarine Jaeger Stercorarius pomarinus
Parasitic Jaeger Stercorarius parasiticus
Long-tailed Jaeger Stercorarius longicaudus
South Polar Skua Stercorarius maccormicki

comparison of wing and tail configuration1

1 According to Hartmann (2000a, 2000b and 2016)