This butterfly was on the side of our building in the rainforest.
I can't seem to find its name. It has a white stomach with a greyish-black head and wings, and it has an orange beak. I have a picture but it’s from up far, so it is not the best quality. Also, it was a small bird. It was found near a rocky coastal line near a freshwater river.
preening in some images
Seen flying over lake Erie. Flies like a bat. Very long wings, hardly no tail. Tail was arched like a Petrel