By Melissa C. McDade

Grzimek's scholar Animal lifestyles source: Birds deals readers accomplished and easy-to-use details on Earth's birds. Entries are prepared via taxonomy, the technology during which dwelling issues are categorized into similar teams. each one access comprises sections on actual features; geographic diversity; habitat; vitamin; habit and replica; animals and other people; and conservation prestige. family members entries are by means of a number of species debts and a spread map and photograph or representation for every species. Entries finish with an inventory of books, periodicals, and websites which may be used for additional study.

Each quantity of Grzimek's pupil Animal lifestyles source: Birds features a pronunciation consultant for clinical names, a word list, an summary of birds, an inventory of species within the set via biome, an inventory of species by means of geographic position, and an index. The set has 640 full-color maps, images, and illustrations to brighten up the textual content, and sidebars offer extra evidence and similar information.

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F Family: A grouping of genera that share certain characteristics and appear to have evolved from the same ancestors. Feather tract: Spacing of feathers in a pattern. Feces: Solid body waste. Fermentation: Chemical reaction in which enzymes break down complex organic compounds into simpler ones. This can make digestion easier. Fledgling: Bird that has recently grown the feathers necessary to fly. Flightless: Species that have lost the ability to fly. Flock: A large group of birds of the same species.

Some while they are flying. An ancient family, species allow helpers to raise the young with Australian robins are more closely related them. The female builds a cup-shaped nest to Australian lyrebirds and honeyeaters. in the fork of a tree branch. Bark or lichen (LIE-ken) is often placed over the top of the nest in order to hide it from predators, animals that hunt them for food. The female lays one to three eggs and incubates them, or sits on them until they hatch, for fifteen to nineteen days, depending on the species.

Precocial chicks are covered with down feathers and can run or swim after their parents soon after hatching. Before long, they learn to find their own food, but the parents usually protect them for a while longer. Altricial (alTRISH-ul) birds are helpless when they hatch. Songbirds, seabirds, owls, parrots, and woodpeckers are some of the altricial birds. They are naked, blind, and weak, and they need to be fed by adults at least until they leave the nest. HABITATS, HABITS, AND PEOPLE Surviving in a habitat In order to live in a habitat, birds need food, water, and shelter (such as a hedge to hide in).

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