Swift Development with Cocoa

Colophon

The animal on the cover of Swift Development with Cocoa is an Australasian gannet.The Australasian gannet (Morus serrator or Sula bassana) belongs to the Sulidae family and has a small range or territory, though its overall numbers seem to be increasing. This bird breeds on Tasmania, Victoria, and New Zealand; and tends to live in large colonies on cliffs and beaches.

This large coastal seabird has mostly white plumage, with black lining and flight feathers, plus a yellow head and a blue beak. The young bird has darker coloring, mostly brown with light spots, but gradually becomes whiter over its first five years. Its body is around three feet long, with a wingspan of approximately five feet. Younger birds disperse to a greater extent than their mature counterparts, who tend to hang in pairs for several consecutive seasons. In breeding season, a couple lays only one egg. Flat ground surrounded by the sea seems to be the preferred nesting location for the gannet, and anchovies, mackerel, flying fish, and squid are some favorite foods.

Many of the animals on O’Reilly covers are endangered; all of them are important to the world. To learn more about how you can help, go to animals.oreilly.com.

The cover image is from Wood’s Natural History. The cover fonts are URW Typewriter and Guardian Sans. The text font is Adobe Minion Pro; the heading font is Adobe Myriad Condensed; and the code font is Dalton Maag’s Ubuntu Mono.