CHAPTER I.

_GULLS AND TERNS._ The Gull Family—Changes of Plumage—Characteristics—Great Black-backed Gull—Lesser Black-backed Gull—Herring Gull—Common Gull—Kittiwake—Black-headed Gull—Skuas—Great Skua—Richardson’s Skua—Terns—Sandwich Tern—Common Tern—Arctic Tern—Roseate Tern—Lesser Tern—Black Tern _Pages_ 13-60