Lot of misinformation here. The photos are copyrighted by the photographer. There is no question about that. The issue is whether the posting of the photos here constitutes fair use. Attribution is irrelevant - it's either fair use (an exception to the copyright) or it's not, and if it's not, attribution isn't necessary (though it's customarily a nice thing to do). Equally irrelevant is the fact that the photographer posted the photos online, or whether he protected them with a password or a "right click" shield.
I am a lawyer, so paradoxically, I'm essentially prohibited from providing legal advice here (and so none of this should be considered as such). But I will say that my copyright in the images I post on this site is not destroyed or diminished by virtue of my sharing those images online, and I'd have recourse against someone taking or using those images for a purpose other than one covered by fair use. I might decline to avail myself of that recourse (I'm not a pro photographer, so there isn't a great deal of incentive for me in that), but that doesn't mean I don't have that right.
Ethics and Internet "best practices" aside, fair use is what matters here. Nothing else. As to whether the above use is "fair use," I leave to others to decide.
Gorgeous photos, by the way. Kudos to the photographer.