成年雄性鸵鸟（北非鸵鸟 (Struthio camelus)）
An adult, male red-neck ostrich. The Kenya red-neck ostrich (Struthio camelus camelus) has reddish skin on the neck, thighs, and legs. Males usually reach sexual maturity at 4–5 years of age.
Courtesy of Dr. Karen Hicks-Alldredge.
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