I love this butterfly. It was so interested in the pollen on my Bottlebrush tree, that I was able to snap a few pictures. It has some small red spots on the underside of the wings, but you have to look close to see they are not part of the red bottlebrush.
According to the Florida Chapter of the North American Butterfly Association, they roost together at night. Usually in the same spot, in a large group. I have not located their roosting spot but will be looking.
I have 2 Bottlebrush trees near my front yard. They are frequented by the butterflies and hummingbirds. It is also great dense cover for the Painted Buntings and the Indigo Buntings.