单词	secretary bird
释义	secretary bird noun Etymology: probably so called from the resemblance of the crest to a bunch of quill pens stuck behind the ear : a large long-legged raptorial bird (Sagittarius serpentarius) of southern Africa that has a powerful hooked beak, a crest of long feathers, and a long tail, is predominantly blue-gray with black wing quills, thighs, abdomen, and bars on the tail, feeds largely on reptiles, and is often tamed to rid premises of them
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