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- © Corydon_sumatranus_3.jpg: Lip Kee Yap from Singapore, Republic of Singapore. derivative work: Berichard
- Copyright licence: CC-BY-SA 2.0 (http://creativecommons.org/licenses/by-sa/2.0/)
- Provenance: http://media.eol.org/content/2011/06/14/10/26072_orig.jpg