セーシェルコノハズク Otus insularis

Small compact owl with very small ear tufts that are often invisible. Buff on the underparts and rufous-brown on the back. Found in remnant rainforest and secondary forest on the island of Mahe, in the Seychelles. The odd vocalization is a low, raspy “grrrrr” that is given at a rate of about one note every two seconds, sometimes for several minutes at a stretch. The sound could easily be dismissed as a frog. Visually the species is easily identified, as the only other owl on Mahe is the much larger Barn Owl.