Stock photography, photos: Ornithologist banding tree swallow Stock photos of Ornithologist banding immature tree swallow Iridoprocne bicolor. Note identification paint on tailfeathers Photograph: © John T. Fowler Click for a larger image and more information Keywords associated with this stock photo: Ornithologist, flight, feathers, immature, tree swallow, research, pesticide, colour, songbird, song bird, science, color, migratory, Iridoprocne, bicolor, banding, identification, paint, tail, tailfeathers, leg band