the first two we saw were Yellow Billed. I just presumed these two over further were the same. They had a very slight build. Was looking into the sun, that dark on their face could be just shadow? Go with whatever you think natureguy. :)
Sorry I can't see the second photo, but I think even despite the light the face wouldn't be so black in Yellow-billed (which have a pale face. The legs are also dark. So that confirms my ID