. Birds of the world for young people . 247. Mocking-bird{.Mimus pohjQlotluH),. 242. Audubons Caracara{Polyhorus cherivay). CHAPTER VIII Cranes, Rails, and BustardsORDER—GRUIFORME S CRANES, Rails, and Bustards, though very dif-ferent in external appearance, are reallyclosely related. Cranes and Rails are marshbirds, while Bustards frequent sandy wastes; Cranesare wading birds, but Rails swim and dive with are vegetable feeders, and the diet of Cranes andRails is varied by insects and molluscs, such as snails,slugs, and worms, and Bustards also eat small mam-mals, such as mice, and rep
. Birds of the world for young people . 247. Mocking-bird{.Mimus pohjQlotluH),. 242. Audubons Caracara{Polyhorus cherivay). CHAPTER VIII Cranes, Rails, and BustardsORDER—GRUIFORME S CRANES, Rails, and Bustards, though very dif-ferent in external appearance, are reallyclosely related. Cranes and Rails are marshbirds, while Bustards frequent sandy wastes; Cranesare wading birds, but Rails swim and dive with are vegetable feeders, and the diet of Cranes andRails is varied by insects and molluscs, such as snails,slugs, and worms, and Bustards also eat small mam-mals, such as mice, and reptiles. The Common European Crane is a large and verybeautiful bird, measuring about four feet in Cranes the windpipe, instead of running straightdown the neck to the lungs, passes first into a largechamber in the keel of the breast-bone. After form-ing a coil or loop there, it emerges and passes back-wards to the lungs. By the increase in length thusgained, an extremely loud and resonant voice is pro-duced. See Plate 29, Fig. 161. These birds have long legs and l
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