bluish-gray nuthatch with black head and white breast;
头部为胸部为白蓝灰币;
bluish-gray nuthatch with black head and white breast;
头部为胸部为白蓝灰币;
bluish-gray nuthatch with reddish breast; of northern coniferous forests.
胸部略带蓝灰币;产于北方松林。
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