| Back | 由喙部为红色这一特点可以辨认出其为雄性（以区别於雌性）. |
|---|---|
| Front | yóu huì bù wéi hóngsè zhè yī tèdiǎn kěyǐ biànrèn chū qí wéi xióngxìng yǐ qūbié yú cíxìng The male is distinguished (from the female) by its red beak. |
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