St Helen's, Isles of Scilly of kittiwake ("Rissa tridactyla") on the eastern cliffs, while Parslow (2007) records a large colony of lesser black-backed gull ("Larus fuscus") and a small colony of puffin ("Fratercula arctica"). The Seabird 2000 breeding seabird survey recorded five occupied nests of Manx shearwater ("Puffinus puffinus"). Foreman's Island () is a low-lying island on the south side of St Helen's Pool between Teän and Tresco. It is one of a group of rocks and islets of importance for breeding seabirds. The common froghopper ("Philaenus spumarius") has been recorded on Foreman's. Men-a-vaur () is to the north-west of St Helen's and consists of
Ron Scarlett the New Zealand owlet-nightjar, the Scarlett's duck (which was named by Storrs L. Olson), and the Hodgens' waterhen. The Scarlett's shearwater ("Puffinus spelaeus") described in 1994 by Richard N. Holdaway and Trevor H. Worthy is named in his honour too. Ron Scarlett belong to the founders of the New Zealand Archaeological Association which was established in 1954. He was also a member of the Ornithological Society of New Zealand where he has frequently written contributions for the quarterly scientific journal, "Notornis". In 1996 he was awarded an MBE for his services to science. Scarlett died at age 91 on 9