Darter or Black Cormorant??

I took these photos at our place, my first thought was that this bird was a Darter because of how it looked and also because of it spreading its wings out to dry in the sun as Darters plumage does not repel water.  Also could not see in the pics the small hook on the end of the bill that the Black Cormorant has.  Any opinions greatly appreciated and I do apologise for the very poor photos that I took from the verandah.