JUNOS High Availability

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The animals on the cover of JUNOS High Availability are Bohemian waxwings (Bombycilla garrulus). The generic name Bombycilla, Latin for “silk tail,” describes the bird’s sleek, soft plumage. Waxwing refers to the red tips of the wing feathers that resemble drops of wax. Three species of waxwings exist: Japanese, Cedar, and Bohemian. These species are fairly similar in appearance and are primarily distinguished by geography: the Japanese waxwing lives exclusively in Asia; the Cedar inhabits North America; and the Bohemian—true to its name—travels throughout the sub-Arctic continents in nomadic flocks, particularly in winter as it searches for berries. The two latter waxwings have the most in common, although Cedars are more prevalent in the northeastern United States, whereas Bohemians are numerous in western Canada and the Rocky Mountain region. All three waxwings subsist on a diet of fruit and insects.

Another difference between the species is seen in the edges of the wing feathers: Bohemian and Japanese waxwings have white edges, while Cedars do not. At six to nine inches long, the Bohemian is also larger and grayer than the Cedar, although both have yellow tail feather tips and a pointed crest. The Bohemian waxwing’s call is extremely similar to the Cedar’s, most likely because the Bohemian has no territory to defend and thus has never needed to develop a true song.

The cover image is from the Dover Pictorial Archive. The cover font is Adobe ITC Garamond. The text font ...