Birdsaremuchbrainierthanpreviouslythoughtandcanlieandcheattogetameal,sayscientists.Pigeonscantellthedifferencebetweendifferentstylesofartandhavepowerfulmemories.Theycanalsotricktheirmatestogetfoodfirst.Crowscanmaketoolstoreachfoodandhidefoodfromotherbirds.
科學家指，鳥類比人們以往想像的聰明得多，懂得說謊並透過欺騙方式取得食物。鴿子懂得分辨不同風格的藝術，記憶力很強；牠們又懂得玩把戲欺騙同伴以先取得食物。烏鴉懂得製造工具取食物，並會收藏食物以防其他鳥類發現。