![]() ![]() Bill-clattering is done by both adult and young birds, and it plays a role in communication of the species. Shoebills are mostly mute birds that perform bill-clattering displays at the nest, and adult birds in these displays have noted to emit a muffled cow-like moo and high-pitched whining sounds. It is flattened above and has shape edges. Its shoe-like shape is what gives the bird its name. The most characteristic feature of this bird is the dull, straw-colored, erratically greyish-marked 18.8-24 cm long beak, which is hooked, wide and massive. Unlike most birds, the eyes are located in front of the skull, increasing the field of binocular vision. The neck is relatively short compared to other long-legged birds (herons and cranes). The mass of the this bird normally ranges from 4 to 7 kg and males are heavier than females males weigh within an average of 5.6 kg, while females weigh within an average of 4.9 kg. The length from tail to tip of the beak ranges from 100-140 cm, while the wingspan ranges from 230-260 cm.
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