Let's directly compare these birds parked like fighter air craft waiting for launch into battle. Well these tern-birds shown within hours shall all go into one 6000km long flight battle non-stop, flight from NZ - direct to China and Russia.

ID：115318-03811 新西兰的鸟 　　图片来源：CCN传媒图片网 乐骄傲 

Tern triumphs and flight monuments are historical and observational before they are pictorial. Photographer honours to find and shoot tern - just before takeoff.(CCN传媒图片网 何赛娇)