کوتاه کردن نوک (Persian Wikipedia)

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Ash, Lydia. "Coping your Raptor". The Modern Apprentice. Retrieved 16 April 2012.

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"Animal law in the spotlight: Victoria's factory farming bill". Archived from the original on 2019-03-31. Retrieved 2015-08-09.
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"Ab 2017 bleibt der Schnabel jetzt bundesweit dran!". Archived from the original on 2015-04-14. Retrieved 2016-02-24.
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"Layer Hens Code of Welfare". Ministry for Primary Industries website. New Zealand Government. 1 October 2018. Archived from the original on 18 February 2021. Retrieved 19 May 2020.