Cygnus olor Mute Swan ID: 0091 3183 0920 0052 [detail] Dr. Lloyd Glenn Ingles © 2001 California Academy of Sciences	Cygnus olor Mute Swam ID: 0000 0000 1200 0212 [detail] © 1999 John White	Cygnus olor Mute Swan ID: 0000 0000 0807 1345 [detail] © 2007 Dave Mangham/www.wildlifephotos.org.uk	Cygnus olor Mute Swan ID: 0000 0000 0807 1344 [detail] © 2007 Dave Mangham/www.wildlifephotos.org.uk
Cygnus olor Mute Swan ID: 1342 3162 2235 0053 [detail] Enid Leff © 2007 California Academy of Sciences

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