Bill malformation of juvenil Cory's Shearwaters (Calonectris diomedea borealis) on Selvagem Grande

Nogales, Manuel; Martín, A.; Zino, Francis J. A.

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Bill malformation of juvenil Cory's Shearwaters (Calonectris diomedea borealis) on Selvagem Grande

Nogales, Manuel; Martín, A.; Zino, Francis J. A.

URI: http://dspace.cm-funchal.pt:8080/jspui/handle/100/1420

Date: 1990

Abstract:

During a ringing expedition of 1988 three juvenile Cory's Shearwaters with malformation of their bills were found among a total of 801 birds (0.375%). No adults with similar malformations were observed, and it is suggested that these juvenile birds will d

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