JUNOS Enterprise Routing

Colophon

The animal on the cover of JUNOS Enterprise Routing is Tengmalm’s owl (Aegolius funereus), also known in North America as the Boreal owl. The owl’s distinguishing features include pale or bright yellow eyes and a brown body spotted with white flecks (its belly is usually off-white).

This solitary, largely unsociable owl lives in thick forests throughout North America and in various mountain ranges throughout Eurasia. They often nest in the old homes of woodpeckers. Although the creatures are unfriendly, they may show loyalty to their families by raising their young generation after generation in the same home.

The bird’s namesake is Swedish naturalist Peter Gustaf Tengmalm, who improved upon a previous classification system for the owl. Occasionally the bird’s cry will sound like the peal of a funeral bell, hence the funereus in its species name. In North America, scientists named the owl after the Greek god of the north wind, Boreas, referring not to the owl’s voice, but to its northern habitats.

While it is known for it funereal cries, the owl’s voice does carry a range of notes. A commonly heard song from the owl is its territorial call, which sounds as if the bird is singing the word “poop” several times in rapid succession. When wooing a female, the male sings a series of stutters that eventually crescendos in a long trill of up to 350 notes.

The cover image is from Dover’s Animals. The cover font is Adobe ITC Garamond. The text font is Linotype Birka; ...