Fork-tailed sunbirds eat nectar at West Lake Park in Fuzhou(1/8)

A fork-tailed sunbird eats the nectar of a flower at the West Lake Park in Fuzhou, capital of southeast China's Fujian Province, Jan. 3, 2020. (Xinhua/Mei Yongcun)

A fork-tailed sunbird eats the nectar of a flower at the West Lake Park in Fuzhou, capital of southeast China's Fujian Province, Jan. 3, 2020. (Xinhua/Mei Yongcun)

A fork-tailed sunbird eats the nectar of a flower at the West Lake Park in Fuzhou, capital of southeast China's Fujian Province, Jan. 4, 2020. (Xinhua/Mei Yongcun)

A fork-tailed sunbird eats the nectar of a flower at the West Lake Park in Fuzhou, capital of southeast China's Fujian Province, Jan. 3, 2020. (Xinhua/Mei Yongcun)

A fork-tailed sunbird eats the nectar of a flower at the West Lake Park in Fuzhou, capital of southeast China's Fujian Province, Jan. 3, 2020. (Xinhua/Mei Yongcun)

A fork-tailed sunbird eats the nectar of a flower at the West Lake Park in Fuzhou, capital of southeast China's Fujian Province, Jan. 4, 2020. (Xinhua/Mei Yongcun)

A fork-tailed sunbird eats the nectar of a flower at the West Lake Park in Fuzhou, capital of southeast China's Fujian Province, Jan. 3, 2020. (Xinhua/Mei Yongcun)

A fork-tailed sunbird eats the nectar of a flower at the West Lake Park in Fuzhou, capital of southeast China's Fujian Province, Jan. 4, 2020. (Xinhua/Mei Yongcun)