BEAK DEFORMATION IN A SOUTHERN GIANT PETREL

• Main Authors: At Harmony Point (°′s, Nelson Isl, Macronectes Giganteus Chick, Lucas J. Marti, Patricio J. Bellagamba, Nestor R. Coria
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Published: 2007
• Subjects: Giganteus; Giant Petrel; Macronectes giganteus
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.509.9213; http://www.marineornithology.org/PDF/36_2/36_2_195-196.pdf

Petrel Macronectes giganteus chick with a bill abnormality. The chick was accompanied by its parent. The date was approximately 21 days after hatching had started. The upper mandible showed torsion to the left involving not only keratin but also bony structures (Fig. 1). Before leaving the island (24 March), the bird was checked and was found to still be alive. Seven months later, a new expedition of scientists arrived on the island. The Southern Giant Petrel chick was found dead on the nest. Although the body was not complete, most of its skin and feathers were in good condition. The chick was completely feathered, and according to the length of the tarsus