The grey-tailed mountaingem or gray-tailed mountaingem ("Lampornis cinereicauda") is a hummingbird which breeds only in the mountains of southern Costa Rica.
The gray-tailed mountain-gem ("Lampornis cinereicauda") is a species of hummingbird.
The gray-tailed mountain-gem ("Lampornis cinereicauda") is a species of hummingbird.
让这段文字不那么复杂: The grey-tailed mountaingem or gray-tailed mountaingem ("Lampornis cinereicauda") is a hummingbird which breeds only in the mountains of southern Costa Rica. 输出: