Sterna galericulata Public domain scan of zoological print or book illustration, zoology, free to use, no copyright restrictions image - Picryl description
Tafel 273 von Birds of America von John James Audubon, die Cayenne Tern darstellt.
A history of the birds of Europe : including all the species inhabiting the western palaearctic region v.9
Birds of New York, by Elon Howard Eaton ... Public domain photograph of 20th-century zoological illustration, free to use, no copyright restrictions image - Picryl description
Identifier: annualreport6331909newy (find matches) Title: Annual report Year: 1902 (1900s) Authors: New York State Museum Subjects: New York State Museum Science Science Publisher: Albany : University of t Mehr
Identifier: cu31924002799074 (find matches) Title: Birds of New York Year: 1910 (1910s) Authors: Eaton, Elon Howard, 1866-1934 Noyes, Nicholas H. fmo Subjects: Birds Publisher: Albany, University of the St Mehr
Left: White Ibis with egg, Right: Royal Terns Title: Coast watch Identifier: coastwatch00uncs_16 (find matches) Year: 1979 (1970s) Authors: UNC Sea Grant College Program Subjects: Marine resources; Oceanograph Mehr
Title: The American Museum journal Identifier: americanmuseumjo16amer (find matches) Year: c1900-(1918) (c190s) Authors: American Museum of Natural History Subjects: Natural history Publisher: New York : Amer Mehr