Gómez, César (July 27, 2012). "Geranospiza caerulescens". Global Raptor Information Network. The Peregrine Fund. Archived from the original on June 4, 2019.
Persad, Amrit (2017). "Geranospiza caerulescens (Crane Hawk)"(PDF). The Online Guide to the Animals of Trinidad and Tobago. The University of the West Indies. Retrieved 14 April 2024.
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Gómez, César (July 27, 2012). "Geranospiza caerulescens". Global Raptor Information Network. The Peregrine Fund. Archived from the original on June 4, 2019.