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JavaScript Cookbook
book

JavaScript Cookbook

by Shelley Powers
July 2010
Intermediate to advanced content levelIntermediate to advanced
552 pages
12h 40m
English
O'Reilly Media, Inc.
Content preview from JavaScript Cookbook

Colophon

The animal on the cover of JavaScript Cookbook is a little (or lesser) egret (Egretta garzetta). A small white heron, it is the old world counterpart to the very similar new world snowy egret. It is the smallest and most common egret in Singapore, and its original breeding distribution included the large inland and coastal wetlands in warm temperate parts of Europe, Asia, Africa, Taiwan, and Australia. In warmer locations, most birds are permanent residents; northern populations, including many European birds, migrate to Africa and southern Asia. They may also wander north after the breeding season, which presumably has led to this egret’s range expansion.

The adult Little Egret is 55–65 cm long with an 88–106 cm wingspan. It weighs 350–550 grams. Its plumage is all white. It has long black legs with yellow feet and a slim black bill. In the breeding season, the adult has two long nape plumes and gauzy plumes on the back and breast, and the bare skin between its bill and eyes becomes red or blue. Juvenile egrets are similar to nonbreeding adults but have duller legs and feet. Little egrets are the liveliest hunters among herons and egrets, with a wide variety of techniques: they may patiently stalk prey in shallow waters; stand on one leg and stir the mud with the other to scare up prey; or, better yet, stand on one leg and wave the other bright yellow foot over the water’s surface to lure aquatic prey into range. The birds are mostly silent, but make various croaking and ...

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Publisher Resources

ISBN: 9781449390211Supplemental ContentErrata Page