Bobo

See here: http://bit.ly/LXIdWH

Cute..

Actually it is one of the issues because I couldn't still identify this bird

If it is a brown booby which doesn't look like any other of the species then it must be a juvenile or something else. Because an adult has defined brown head and back and blue/grey bills and this has yellow.

Yeah, the large bird is the one that I want to identify. I think it may be a Brown booby.

Hi there, I am assuming you want the larger bird identified as you have two species of birds in the photo.