1. 
   zygodactylae
   <ornithology> The zygodactylous birds. In a restricted sense applied to a division of birds which includes the barbets, toucans, honey guides, and other related birds. ... Source: Websters Dictionary ... (01 Mar 1998) ...
   Found op http://www.mondofacto.com/facts/dictionary?zygodactylae
   
   
2. 
   Zygodactylae
   • (n. pl.) The zygodactylous birds. In a restricted sense applied to a division of birds which includes the barbets, toucans, honey guides, and other related birds.
   Found op http://thinkexist.com/dictionary/meaning/zygodactylae/
   
   

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