Sabine's Gulls nest on the island as well.

Among these were also numerous grey phalaropes, leach's petrels and sabine's gulls.

The region is the main North American stronghold of the Sabine's gull, with some 10,000 pairs nesting here.

The Sabine's Gull is a small gull.

Occasionally individual Sabine's Gulls can be seen off other coasts such as the northeastern United States or further east in Europe, typically following autumn storms.

The Sabine's Gull breeds in colonies on coasts and tundra, laying two or three spotted olive-brown eggs in a ground nest lined with grass.

Calls and displays are quite different from other gulls, most resembling the vocalisations of the Black-legged Kittiwake and Sabine's Gull.

This gull is traditionally believed to be most closely related to either the kittiwakes, Sabine's Gull, or Ross's Gull.

SABINE'S GULL Larus sabini.

The Sabine's Gull is usually treated as comprising a monotypic genus, it is only placed within the genus Larus when the genus is enlarged.

Mitochondrial DNA studies confirmed this, and the closest relative of the Sabine's Gull is now thought to be the Ivory Gull, another Arctic species.

It is especially well known for its bird-life and over 200 species have been recorded at Ogston including Wilson's Phalarope, Sabine's Gull and Long-tailed Skuas.

At Alkefjleet, Brünnich's Guillemots have a nesting ground, and also brent geese can be found breeding in the reserve, as can Sabine's gull and ivory gull.

He sent Joseph a specimen of a new gull which had been discovered during the expedition, which Joseph named Sabine's Gull (Larus sabini) in honour of his brother.

In addition, notable populations of Arctic tern, Cackling Goose, Long-tailed duck, Pacific Loon, Pomarine Jaeger, and Sabine's Gulls frequent the area.

The nutrient-rich cold waters found in the basin are known to be especially favorable to phytoplankton and the numerous islands within it are important bird habitats, including Sabine's Gulls and many types of shorebirds.

The tails of all but three species are rounded; the exceptions being the Sabine's Gull and Swallow-tailed Gulls, which have forked tails, and the Ross's Gull, which has a wedge-shaped tail.

According to the Nebraska Birding Trails website, birds found at Harlan County Reservoir have included Common Loon, Black-legged Kittiwake, Parasitic Jaeger, Little Blue Heron, White-faced Ibis, and Sabine's Gull.

Structurally, it is most similar to the kittiwakes; however, recent genetic analysis based on mtDNA sequences shows that Sabine's Gull is the Ivory Gull's closest relative, followed by the kittiwakes, with Ross's Gull and Swallow-tailed Gull sharing a clade with these species.