BAR-HEADED GOOSE
Phylum – Chordata
Class – Aves
Order – Anseriformes
Family – Anatidae
Genus – Anser
Species: Anser indicus
Native to Central Asia: Mongolia, Tibet, China, and Kyrgyzstan. Breeds near high-altitude lakes and winters in South Asia (India, Bangladesh, Myanmar). Found at elevations up to 4000–6000 meters, inhabiting mountain grasslands and freshwater wetlands. Lifespan in the wild is 15–20 years, in captivity is up to 25–30 years
Females weight 2–3 kg, males weight 2.5–3.5 kg. Length is 68–76 cm, Wingspan is from 140 to 160 cm. Bar-headed geese form monogamous pairs and nest on the ground, often in colonies near water. The female lays 3–8 eggs, with incubation lasting about 27 days. They are highly social birds, living in family groups or large flocks. During migration, they fly in V-shaped formations. Primarily herbivorous: grasses, leaves, seeds, and crops; occasionally insects and small invertebrates.
The genus Anser has an ancient evolutionary origin among waterfowl. Fossil ancestors date back to the Neogene period. Evolution is associated with adaptation to aquatic habitats and high-altitude environments. The bar-headed goose symbolizes endurance due to its extreme migration abilities. It has been widely studied by scientists researching high-altitude physiology and oxygen adaptation.
According to the International Union for Conservation of Nature, the species is classified as Least Concern (LC). Main threats are habitat loss, hunting, and environmental changes.
5 Interesting Facts:
- The bar-headed goose is one of the highest-flying birds in the world.
- It can fly over the Himalayas at altitudes exceeding 7,000 meters.
- Its physiology is adapted to low-oxygen conditions at high altitudes.
- During migration, it travels thousands of kilometers across continents.
- It is easily recognized by the two black bars on its head.
