Bar-headed Goose

With predominantly pale grey plumage, the Bar-headed Goose is noticeably lighter than other geese in the Anser genus. Its most defining feature is its white head, which bears two distinct black, U-shaped bars wrapping around the back of the head and upper neck.

The bill is a bright orange and the legs are yellow, contrasting sharply with the pale body. In flight, the pale grey wings reveal a broad black trailing edge. Males and females are identical in plumage, though males tend to be slightly larger on average.

In flight, the Bar-headed Goose produces a resonant, honking call that carries across long distances. These vocalisations are crucial for maintaining spacing while flying in their characteristic V-formations.

The constant calling helps family groups and larger flocks stay connected, especially during their demanding migratory journeys or when navigating through poor visibility.

During the winter months, large numbers of Bar-headed Geese congregate in lowland wetlands and agricultural fields across India and Nepal. Look for their striking pale grey bodies and the unmistakable black bars on the back of their white heads.

In the UK and Europe, keep an eye out for escapees from waterfowl collections mingling with other wildfowl on lakes and reservoirs. A small naturalised population also breeds in Germany, offering European birdwatchers a chance to see them in the wild.

On their summer breeding grounds on the Tibetan-Qinghai Plateau, Bar-headed Geese graze on short highland grasses, roots, tubers, leaves, and seeds found around mountain lakes and streams.

During the winter months in South Asia, they shift their focus to agricultural areas. Here, they feed heavily on cultivated crops such as barley, rice, wheat, and corn. This reliance on agricultural fields can sometimes bring them into conflict with local farmers protecting their harvests.

Nesting in large colonies on the ground near highland marshes and lakes, Bar-headed Geese create shallow depressions lined with vegetation to rear their young. They are seasonal breeders that typically form monogamous pairs, though polygynous arrangements can occur in populations with more females than males.

Between late April and June, females lay a clutch of 3 to 8 eggs. The female incubates the eggs for 28 to 30 days while the male stands guard nearby. The precocial goslings leave the nest shortly after hatching and fledge at 55 to 60 days of age, receiving care and protection from both parents.

Twice a year, Bar-headed Geese undertake a demanding journey between their breeding grounds on the Tibetan-Qinghai Plateau and their wintering grounds in South Asia, crossing the formidable Himalayas.

They fly in V-formations, often travelling at night or in the early morning to take advantage of colder, denser air. This strategy provides more lift and oxygen, allowing them to complete the mountain crossing non-stop in as little as seven hours.

Wild Bar-headed Geese typically live between 15 and 20 years, provided they survive their perilous bi-annual migration over the Himalayas and avoid predators like golden eagles and red foxes.

While exact maximum lifespans for wild individuals are difficult to verify, related goose species have been recorded living up to 31 years in captivity.

The Bar-headed Goose population is currently increasing across a vast Asian range of over 2,500,000 square kilometres, earning it a Least Concern conservation status. They face natural predation from sea eagles, golden eagles, crows, ravens, and red foxes.

The species is closely monitored by health organisations, as they are known carriers of the highly pathogenic avian influenza (HPAI) H5N1 virus, which can impact both wild bird populations and domestic poultry.