What? No Arctic?
That is cool. I like trying to see "groups" like that in one day if possible.
I have rarely done it except you can get all the regular North American Ardeids in the spring on the coast of Texas. I know some folks who got 4 kingfisher species in Texas in one morning.
A few years ago when a Yellow-billed Loon showed up off the coast of Texas, I actually thought about trying this but it would have involved a LOT of driving. At the same time all seven US grebe species were possible in the same trip. It was tempting but I thought that knowing my luck chasing birds I would end up with all but one of each.
"Better to have not tried than failed a crushing defeat just short of the goal line."