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The Yellow-billed loon, the largest of the world’s five loon species, and also the rarest, has oneof the highest nesting densities in the world on the central Arctic Coastal Plain of Alaska (Earnstet al. 2005). In Alaska, this species typically breeds on the edges of relatively deep (>2 m), large(usu. >12 ha) fish-bearing lakes (http://alaska.fws.gov/). Little is known about their diet inAlaska, but they are believed to depend on several fish species, with cisco (Coregonus spp.)being the most important (J. Schmutz, pers. comm.). Although previously thought to winter offthe coast of the Pacific Northwest, new evidence suggests the North American breedingpopulation winters in East Asia from the western Kuril Islands...
The Red-throated Loon is the smallest of the world’s five loon species. This species typicallybreeds in low wetlands in both tundra and forested terrain (Barr et al. 2000). They nest on pondedges, sometimes along very small ponds (<1 ha), particularly in parts of their range sympatricwith Pacific Loons (Barr et al. 2000). Red-throated Loons are unique in that they regularlyforage on fish away from their nesting ponds.In Arctic Alaska this often involves flights to theArctic Ocean (Andres 1993). Like Yellow-billed Loons, the North American breedingpopulation, north of 68° latitude, appear to winter primarily in East Asia from the western KurilIslands to the Yellow Sea (J. Schmutz et al., unpublished data). In 1993,...
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