Pomarine jaeger resting at seaside, it is a bulky gull-like seabird; the largest and most barrel chested of the three jaegers. Breeds on Arctic tundra, spends the rest of the year at sea. Breeding adults are unique with elongated spoon-shaped central tail feathers. Also note blackish-brown upperparts, messy black cap that extends below the bill, and extensive white flash on upper and underside of outerwing. Rare dark morph adult is entirely blackish-brown but still has white wing flashes. Immature birds are variable, but in general, they are barred with brown above and have bold black-and-white bars on the underwing and undertail coverts.
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