Anser fabalis
Taiga bean geese are a common sight on northern taiga marshes of Siberia and northern Scandinavia in spring and summer, before heading south into Europe each winter. Several hundred individuals spend winters in the UK, with rare vagrant visitors occasionally reported in North America.
Taiga bean geese are medium-sized geese, similar in appearance to several other species of grey geese. Their upperparts are mid-brown, with white edges to feathers, giving a streaked effect that is particularly visible on the wings, which appear grey when folded and a darker charcoal black in flight. The lower belly and undertail are bright white.
The taiga bean goose has a brownish-grey neck, with a darker brown face and neck. The bill has a wide orange band across it, contrasting with a black base and tip. Legs and feet are also orange.
Female and male taiga bean geese are alike in colouring, although females are slightly smaller than males.
Young taiga bean geese are also fairly similar to adults, although duller in plumage and more marked fringing to the edges of feathers on the upper body. The patterning on the wings is less defined and more mottled until they mature. Legs, feet, and bill are a less vibrant shade of orange.
Taiga bean geese can be distinguished from tundra bean geese as they are slightly larger, darker, and sleeker than the tundra species, with a longer neck and more orange on their bill.
Taiga Bean Goose standing in a lake
Taiga bean geese are slightly larger than the very similar related species the tundra bean goose. Males are larger and heavier than females.
Taiga Bean Goose in the icy water stretching its wings
Not one of the noisiest goose species, the taiga bean goose has a low-pitched honking call, heard in flight and on the water as a contact call, which sounds like ‘hank-hunk’.
Taiga Bean Goose calling out from the top of a rock
As their names suggest, taiga bean geese follow a diet in which beans feature heavily. Grasses, cereal crops, potatoes, and other agricultural crops are among the main foods eaten. Leaves, roots, tubers, seeds, grains and nuts are also popular.
Young taiga bean geese are led to grazing grounds shortly after hatching, where they forage for grass and seeds alongside their parents.
Taiga Bean Goose feeding on grass
Taiga bean geese breed in taiga habitats, finding lakes, pools and marshy boglands or rivers in which to nest and forage. The species also nest in the wooded tundra zone.
Winter habitats include open country, and grazing areas around agricultural land, as well as low-lying wetlands, particularly marshes.
Three distinct populations of breeding taiga bean geese exist. The furthest east is found from eastern Scandinavia to the Ural Mountains. Individuals from this population spend winters in western, central, and southern Europe, particularly the Netherlands and Germany.
Further east, from the Ural Mountains to Lake Baikal, taiga bean geese are present, heading to Turkmenistan, Iran, and western China once breeding is complete.
A third population breeds in Siberia, heading south to eastern China and Japan each autumn.
The range of all three populations of taiga bean geese is located to the south of that of the related species, the tundra bean goose.
Worldwide, there are an estimated 680,000 to 800,000 taiga bean geese, although numbers are in decline. Between 63,000 and 85,000 individuals are thought to breed in Sweden, with a further 23,000 pairs in Russia. In winter, the Netherlands and Germany welcome the highest numbers of migrating taiga bean geese.
In the UK, taiga bean geese are more common than the similar tundra bean goose, although neither species is particularly common in the British Isles. Only around 230 taiga bean geese arrive in Britain in the post-breeding season before returning to Scandinavia or Siberia the following spring.
Taiga Bean Goose floating on the river
Taiga bean geese are exceptionally rare vagrant visitors to North America, with occasional sightings reported in Canada and the US, but no regular established breeding or wintering sites.
Reports of taiga bean geese have been recorded in Quebec, Yukon, and Nova Scotia in Canada, and in Alaska, Washington, California, Iowa, and Nebraska, in the United States.
During the spring and summer, taiga bean geese are not found in the wild in the United Kingdom. Arrivals begin in October, with migrating birds arriving from Scandinavia and settling for up to five or six months.
Passage sightings of taiga bean geese are regularly reported in north-east Scotland, but two established sites may offer the best chance of spotting one. These include the Yare Valley in Norfolk and the Avon Valley in Falkirk, south-central Scotland.
Taiga Bean Goose wading in shallow water
Taiga bean geese are thought to breed for the first time at three years and have an expected lifespan of around 7 years. According to ringing records, the oldest known taiga bean goose reached 25 years and 7 months.
Foxes and raptors may attack taiga bean geese and raid their nests for eggs. However, due to their aggressive nature and vigilant nest defense, they are not a common target for predators.
Humans do pose a significant threat, in particular in parts of Scandinavia where hunters kill large numbers of taiga bean geese each year.
As wild birds and migratory visitors to the UK, taiga bean geese have protected status under the Wildlife and Countryside Act, 1981, which makes it an offence to kill, injure or take them into captivity.
Although taiga bean geese are considered a species of least concern globally, numbers are believed to be in decline across much of their range. Habitat degradation, poisoning by pesticides and the effect of climate change on northern breeding grounds are all threats to the future survival of the species.
Hunting is also a threat in Sweden and Norway. In Britain, taiga bean geese have Amber status on the British Birds of Conservation Concern list.
Pair of Taiga Bean Geese preparing for take-off
Taiga bean geese nest on boggy ground, choosing raised spots such as hummocks at least 50 cm above the bog’s surface to ensure they are safe from flooding or rising water levels. Nests are built from aquatic vegetation found nearby.
Taiga bean geese begin to arrive on breeding grounds from April onwards, with laying reaching a peak in May although it may be delayed depending on weather conditions.
After an incubation period of 25 to 29 days, by the female alone, the eggs hatch, and young taiga bean goose goslings are able to swim and forage for their own food almost immediately.
Between four and six pale, unmarked eggs are laid by taiga bean geese. Eggs are large, measuring 84 mm by 56 mm (3.3 in by 2.2 in) and weighing approximately 146 g (5.2 oz).
Strong, long-term monogamous pair bonds are formed between taiga bean geese mates, which are only broken on the death of one partner. Pairs raise one brood together each year
Nest of a Taiga Bean Goose with five eggs
Taiga bean geese are notoriously aggressive when they sense a threat to their territory, their mate, or their young. Physical aggression and vocal assertion are used to drive off any approaching humans, animals, or other birds. They are relatively social among other geese outside of the breeding season, migrating and foraging together without conflicts.
Flock of Taiga Bean Geese in-flight
Taiga bean geese are relatively short-distance migrants, breeding in the sub-Arctic taiga regions of northern Europe and moving southwards into central and southern Europe, Iran, parts of China, Japan, the Korean peninsula, and South East Asia.
Migration south begins from October and November onwards, with the return trip starting in February each year.
Taiga bean geese are only very rare and occasional vagrants to North America, with their native range occurring in northern Europe and parts of Central Asia.
No taiga bean geese breed in the UK, but two regular sites welcome winter migrants each year, one in Scotland and one in Norfolk. Only around 230 individuals arrive in the UK after the breeding season ends and depart the following spring.
Length:
66cm to 88cm
Wingspan:
147cm to 175cm
Weight:
2.6kg to 4kg
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