Considered by some authors to be a subspecies of Vermilion Flycatcher (Pyrocephalus rubinus). References See References. Files: More Information Articles about the Least Vermilion Flycatcher If you would like to read any articles about the Least Vermilion Flycatcher... Show Articles (0) No Pictures of Least Vermilion Flycatcher If Birdpedia has no pictures of Least Vermilion Flycatcher or you would like to see more, then try the following... From BING (0) No Videos of Least Vermilion Flycatcher If Birdpedia has no videos of Least Vermilion Flycatcher or you would like to see more, then try the following.. From BING (0)