Long-tailed Skua vs Thick-billed Longspur

Long-tailed Skua and Thick-billed Longspur are distinct in both habitat and appearance. The Long-tailed Skua is an Arctic seabird, often seen over open ocean, while the Thick-billed Longspur is a bird of the shortgrass prairie, known for its striking aerial displays.

Look for the Long-tailed Skua over open ocean or Arctic tundra, often alone. The Thick-billed Longspur is more likely found in large flocks on the plains, performing aerial displays with a distinctive tail pattern.

Long-tailed Skua has a more uniform, conservative plumage with potential age-related and polymorphic variation, often lacking distinctive features outside breeding plumage. Thick-billed Longspur displays a vivid white-and-black 'T'-patterned tail during its aerial display.

Long-tailed Skua is adapted for predation on rodents and is often solitary during migration. Thick-billed Longspur is known for its aerial display and forms large flocks outside the breeding season.

Long-tailed Skua frequents dry tundra and open ocean, while Thick-billed Longspur inhabits open, wind-swept plains and shortgrass prairies.