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Keywords from Image Description:
Whiskeredtern. Weibrtige Seeschwalbe Hydrochelidon hybrida Whiskered Tern Chlidonias hybridus from German enc org page Naumann Naturgeschichte der Vgel Mitteleuropas XI Band creator John Gerrard Keulemans Hydrochelidon Naumann Naturgeschichte der Vgel Mitteleuropas NAUMANN original upload log page en Whitewingblacktern Jimfbleak