Nice captures. Isn't it nice when they just "happen" to be there AND you have a camera with you! They may both be males. Their very red tails makes one wonder if they aren't related to RTHs ..
They are probably even more distantly related than you might think, latest research has falcons most closely related to parrots, songbirds and seriemas, while the common ancestor of this group and other raptors also led to owls, trogons and woodpeckers, among other things.
Nice pics, the first is a male and the second a female.