摘要
2017年12月19日,在陕西省西安市临潼区渭河段发现1只黑喉潜鸟(Gavia arctica)。该物种包括2个亚种,即指名亚种(G.a.arctica)和北方亚种(G.a.Viridigularis)。其中指名亚种在我国分布于新疆北部;北方亚种分布于辽宁东部、河北东北部、天津、山东东部、江苏、上海、浙江、福建和台湾。从分布状况推测,此鸟是北方亚种的可能性较大。经查阅相关文献,证实此次黑喉潜鸟的发现是该物种在内陆地区的唯一记录,也是陕西省鸟类新纪录。此鸟应为偶然出现在陕西渭河流域的迷鸟。
On 19 December 2017, a black-throated loon( Gavia arctica) was recorded in the section of Weihe River in Lintong District, Xi' an City, Shaanxi Province. This species includes two subspecies, viz. the nominate subspecies( G. a. arctica) and the northern subspecies( G. a. viridigularis). In China,the distribution of the nominate subspecies includes northern Xinjiang, while that of the northern subspecies includes eastern Liaoning, northeastern Hebei, Tianjin, Shandong, Jiangsu, Shanghai, eastern Zhejiang, Fujian and Taiwan. According to the distribution, the bird recorded in Weihe River is more likely to be of the northern subspecies. Based on literature review, we confirmed it is the only record of black-throated Loon in the inland area,and also the first record of black-throated Loon in Shaanxi Province. The bird was probably a vagrant in the Weihe basin in Shaanxi Province.
引文
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