(原始内容存档于December 17, 2014). Rainey, James. 'The Birds,' 'The Lion King,' 'Thelma & Louise' Join National Film Registry. Variety. December 14, 2016 [December
Pearce. Alexander Skutch, 99, Expert On Central American Birds. The New York Times. 7 June 2004: B 6 [16 February 2019]. 含有連結內容需訂閱查看的頁面 (link) Kjell Bækkelund