Grey Crowned Crane

Xaioxuan,
You're right and as you can see I've just rectified the name! You know when I used for the first time the link that Atul gave me I didn't notice the differences, only when you told me about! Anyway, black grey or African they're just beautiful! Thanks once more! ;-)

They are indeed beautiful...in fact, cranes are my favorite animal, red-crowned cranes though, but for the sake of species identification, black and grey crowned cranes are different species and the difference is pretty obvious...I just thought you wanted the identification to be accurate...

XiaoXuan,
Black, grey, or even African it does'nt matters... they're so beautiful! ;-)

These look like grey crowned cranes not black

Atul and ebsharrett1950, I thank you both for your help! ;-)

Appears to be African Crowned Cranes.