Age- and sex-related differences in head feather patterns of black stilts ( Himantopus novaezelandiae ) | Notornis and Birds New Zealand

Elkington SP; Maloney RF

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Age- and sex-related differences in head feather patterns of black stilts ( Himantopus novaezelandiae ) | Notornis and Birds New Zealand

机译：黑高跷（Himantopus novaezelandiae）的头羽样式与年龄和性别相关的差异|诺托尼斯和鸟类新西兰

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Patterns of white feathers on the heads of 10 female and 18 male wild and captive adult black stilts (Himantopus novaezelandiae) were quantified to determine whether the presence and location of white flecking was age- or sex-related. Eleven of the males, but none of the females had white flecking on their heads. Flecking occurred on 2-7 of 9 head regions described and an increased amount of flecking was positively correlated with increasing age. Males without white flecks were 2-7 years old, whereas males with flecks were aged 5-19 years. Most flecking was around the eyes, in the superciliary region and on the crown. We conclude that the presence of white flecking around the eyes or generally scattered on the head is a reliable indicator of a black stilt being old and male.

机译：对10只雌性和18只雄性野生和圈养成年黑高跷（Himantopus novaezelandiae）头上的白色羽毛图案进行定量，以确定白色斑点的存在和位置与年龄或性别有关。雄性中有11个，但雌性上没有白色斑点。在描述的9个头部区域中有2-7个出现斑点现象，斑点的增加与年龄的增加呈正相关。没有白色斑点的男性年龄为2-7岁，而有斑点的男性年龄为5-19岁。斑点最多的部位是眼睛周围，上睫状区域和冠状部位。我们得出的结论是，眼睛周围有白色斑点或通常散布在头上，这是黑色高跷老而雄的可靠指标。

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《Notornis》 |2000年第3期|共页
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Elkington SP; Maloney RF;
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Age- and sex-related differences in head feather patterns of black stilts ( Himantopus novaezelandiae ) | Notornis and Birds New Zealand

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