Vietnam Adventure Tours & Travel, Trekking, Bird Watching, Cycling Tours

Black-necked crane (Sếu xám, Grus nigricollis) 

The black-necked crane (Grus nigricollis) is a medium-sized crane in Asia that breeds on the Tibetan Plateau and remote parts of India and Bhutan.

The the Latin word grus means "crane".
The specific epithet nigricollis is Latin for "black-necked": niger, meaning "black", and collis, meaning "neck".

Common crane 
(Sếu cổ trắng, Grus grus), also known as the Eurasian crane

The common crane (Grus grus), also known as the Eurasian crane, is a bird of the family Gruidae, the cranes. 
The common cranes winter in the northern half of the Indian subcontinent including Pakistan are those breeding in central Russia. These birds also winter in Burma, Vietnam and Thailand.

The the Latin word grus means "crane".

Grus is a genus of large birds in the crane family.
The the Latin word grus means "crane".

1/ Common crane (Sếu cổ trắng, Grus grus), also known as the Eurasian crane

2/ Black-necked crane (Sếu xám, Grus nigricollis)