Drawing of a Guillemot--also known as a Common Murre--from a 18th century specimen [modern geographical distribution: Europe, Northeastern Asia, Pacific Coast of North America, and Northeastern North America].

Drawing of a Cape Petrel from a 18th century specimen [modern geographical distribution: the Coasts of Antarctica, South America, Southern Africa, and Australia].

Drawing of a pair of Cape Petrels from 18th century specimens [modern geographical distribution: the Coasts of Antarctica, South America, Southern Africa, and Australia].

Drawing of a non-breeding Brown Pelican from a 18th century specimen [modern geographical distribution: North America and the Northern coast of South America].

Drawing of a pair of Great Cormorants from 18th century specimens [modern geographical distribution: Europe, Asia, Africa, Australia, and the East coast of North America].

Drawing of an immature Great Cormorant from a 18th century specimen [modern geographical distribution: Europe, Asia, Africa, Australia, and the East coast of North America].

Drawing of a Northern Gannet from a 18th century specimen [modern geographical distribution: the North Atlantic, the Mediterranean Sea, the Baltic sea, and and the North Sea coasts].

Drawing of an immature European Shag--also known as a Eurasian Cormorant--from a 18th century specimen [modern geographical distribution: Europe and the Middle East].

Drawing of a pair of Red-Billed Tropicbirds from 18th century specimens [modern geographical distribution: Coastal United States and Central America, South America, India, the Middle East, and Africa].

Drawing of a breeding Red-throated Loon from a 18th century specimen [modern geographical distribution: Europe, the United States, Canada, Northeastern Asia, the Middle East, and Central Asia].