L'oie à tête barrée (Anser indicus) est facilement reconnaissable.
Originaire d'Asie centrale (Mongolie, Chine) elle migre en hiver dans le
Nord de l'Inde. C'est un des oiseaux qui vole le plus haut (on les a
repéré à 10km d'altitude) et lui fait survoler l'Hymalaya lors de sa
migration. Cet exploit est permis grâce à une particularité de son hémoglobine qui fixe plus et mieux l'oxygène. Sa respiration
est également plus efficace dans les milieux pauvre en oxygène, et
c'est un animal qui rédut mieux ses pertes thermiques. Elle est donc
unique en son genre :)
The bar-headed goose (Anser indicus) is easily recognizable. Native to central Asia (Mongolia, China) it migrates in winter to the North of India. It is one of the birds that flies the highest (we spotted them at 10km altitude) and made it fly over the Hymalaya during its migration. This feat is allowed thanks to a peculiarity of its hemoglobin which fixes oxygen better and better. Its breathing is also more efficient in oxygen-poor environments, and it is an animal that better reduces its heat losses. It is therefore one of a kind :)
The bar-headed goose (Anser indicus) is easily recognizable. Native to central Asia (Mongolia, China) it migrates in winter to the North of India. It is one of the birds that flies the highest (we spotted them at 10km altitude) and made it fly over the Hymalaya during its migration. This feat is allowed thanks to a peculiarity of its hemoglobin which fixes oxygen better and better. Its breathing is also more efficient in oxygen-poor environments, and it is an animal that better reduces its heat losses. It is therefore one of a kind :)
Oie à tête barrée - bar-headed goose
Anser indicus
LC IUCN red list
Moselle, mai 2018
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