I don't really know for sure if these two birds were Common Nighthawks or a Lesser Nighthawks, but they definitely were nighthawks of some kind. I saw this pair all during the game at Rangers' stadium, buzzing madly above the game, snatching up moths and other insects. There was also a big moon, very beautiful, and perfect weather. (The photo below is stolen from the internet.) When I mentioned to Gary that I saw some birds, he said, "Yes, there are 9 Bluejays down on the field. And Marlon Byrd is here too." Yes, he's an oaf.