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Threatened bird species on two little-known mountains (Chiperone and Mabu) in northern Mozambique

机译：莫桑比克北部两个鲜为人知的山脉（Chiperone和Mabu）上受威胁的鸟类

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The montane forests of northern Mozambique and southern Malawi support several bird species of global conservation concern, and particularly in Malawi are seriously threatened by deforestation. However, the status of these in northern Mozambique remains poorly known. We report that some 1 600 ha of mid-altitude and montane evergreen forest still exists on Mt Chiperone, and that two globally threatened bird species last reported from this locality in 1950, Thyolo Alethe Alethe choloensis (IUCN statusEndangered) and White-winged Apalis Apalis chariessa (Vulnerable), still occur there. Mt Mabu, which to the best of our knowledge was previously biologically undescribed, also has extensive evergreen forest (possibly >5000 ha) and also supports two globally threatened bird species, Thyolo Alethe and East Coast Akalat Sheppardia gunningi (Vulnerable). Range extensions of several forest bird taxa of lesser conservation concern are also reported. The evergreen forests on both mountains appear not to have suffered from any substantial human encroachment and do not seem to be under imminent threat, although more extensive surveys are needed. Our records of Thyolo Alethe suggest that its global population is substantially larger than previously thought and that uplisting to Critically Endangered might not be warranted.
机译：莫桑比克北部和马拉维南部的山地森林养育了全球关注的几种鸟类，特别是在马拉维，森林砍伐严重威胁到这种鸟类。然而，这些在莫桑比克北部的状况仍然鲜为人知。我们报告说，奇珀罗内山上仍然存在约1600公顷的中海拔和山地常绿森林，并且最后一次在该地区报告过两种全球受威胁的鸟类物种是1950年的Thyolo Alethe Alethe choloensis（IUCN处于濒危状态）和White-winged Apalis Apalis chariessa（易受伤害），仍然存在。据我们所知，马布山（Mt Mabu）以前没有生物学描述，也拥有广阔的常绿森林（可能> 5000公顷），还支持两种全球受威胁的鸟类，Thyolo Alethe和East Coast Akalat Sheppardia gunningi（易受伤害）。还报告了一些保护程度较低的森林鸟类群的范围扩展。尽管需要进行更广泛的调查，但两座山上常绿的森林似乎并未遭受任何实质性的人类侵害，并且似乎没有受到迫在眉睫的威胁。我们对Thyolo Alethe的记录表明，该地区的全球人口比以前认为的要多得多，并且可能不必然要将其列入“极度濒危”。

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