I don't know how well hatching eggs would do being shipped by air. However I do know that in my own country if I was to import eggs, they would have to be hatched at a government approved quarantine facility without me even being able to have access to them. That would mean I have to put...
There is a possibility that he is bs dark pied (two copies of the pied gene), as this also can show the white throat patch. Only true way to tell is like what was previously stated: to breed him to a white. If some offspring come out white, he is split white; if all come out pied, he is...