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The animal on the cover of Machine Learning with Python Cookbook is the Narina trogon (Apaloderma narina), which is named for the mistress of French ornithologist François Levaillant, who derived the name from a Khoikhoi word for “flower”, as his mistress’s name was difficult to pronounce. The Narina trogon is largely found in Africa, inhabiting both low and highlands, and tropical and temperate climates, usually nesting in the hollows of trees. Its diverse range of habitats makes it a species of least conservation concern.

The Narina trogon eats mostly insects and small invertebrates as well as small rodents and reptiles. Males, which are more brightly colored, give off a grating, low, repeated hoot to defend territory and attract mates. Both sexes have green upper plumage and metallic blue-green tail feathers. Female faces and chest plumages are brown, while males have bright red undersides. Immature birds have similar coloring to females with distinct white tips to their inner wings.

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 Animate Creation. 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.