Basic Principles
The ‘white-fronted geese’ comprise two species: Greater White-fronted Goose and Lesser Whitefronted Goose. The subspecies taxonomy of the former has long been controversial, but only two taxa are of real relevance in Britain: Russian and Greenland White-fronted Geese. These need to be separated from each other and also, on very rare occasions, from Lesser White-fronted Goose.
Russian White-fronted Goose
Although sometimes termed ‘European’ or ‘Eurasian’ White-fronted Goose, the breeding range of this form extends across northern Russia. Eastern populations winter in East Asia, mainly in China, Japan and Korea, with those from central Siberia wintering in Europe, largely in The Netherlands, south-east Europe and around the Black and Caspian Seas.
In Britain this goose winters in southern England, particularly in East Anglia, but occasional influxes from the large wintering Dutch population can see birds turn up more widely. This subspecies favours wet grassland rather than stubble or sugar beet fields and – although not an inviolate rule – tends to remain in single-species flocks rather than mixing with other geese.
This is a medium-to-large goose with a relatively square-looking head and a rather short, triangular bill. Adult Russian White-fronts have a small white ‘front’ (actually the forehead) and highly variable black belly barring.
Juveniles and early first-winter birds (the white ‘front’ and black belly markings are acquired during the first winter) lack these features and identification hinges on those characters common to all ages – medium grey-brown plumage with little tonal contrast between the neck and body, darkish feathering around the bill base, a slightly paler face, a pink bill (although the true colour can be difficult to discern in some lights), no apparent eyering, a dark grey tail broadly tipped with white, and orange legs and feet.
Young birds which lack the white front and belly barring need to be distinguished with care from Pinkfooted, both bean and Greylag Geese.
In flight, the white-fronted geese lack the prominent pale grey forewing of Pink-footed and Greylag Geese and the upperwing therefore appears darker and more uniform. The call is a high-pitched lyo-lyok, with a musical or laughing quality.
Greenland White-fronted Goose
This subspecies is quite distinct from all other whitefronted geese and has been proposed as a species in its own right. It has a relatively small population (around 24,000 birds), breeds in west Greenland and winters mainly in Ireland and on Islay, Argyll. Away from these traditional sites, it is a rare bird, but can sometimes be found in flocks of Pink-footed Geese. In winter it favours wet moorland and tussocky grassland, in which it disperses in small family groups rather than assembling in large flocks.
It resembles its Russian counterpart, but is slightly larger with a heavier bill and a longer, thicker neck; it averages darker brown overall. The belly barring on adults is also highly variable in its extent but can be more extensive, with some birds having almost wholly black bellies.
The white tip to the tail is narrower than on Russian birds but, most importantly, the bill is carrot-orange and therefore matches the legs (although the pink bills of Eurasian birds can appear orange in some lights and clear views are required to be sure of the colour).
The call resembles that of Russian White-f ront.
Lesser White-fronted Goose
This species is monotypic and confined to the Palearctic. It breeds from northern Scandinavia eastwards across Siberia. Eastern birds winter mainly in eastern China, while western birds head south-west to Europe. Eastern Hungary and around the Black and Caspian Seas are traditional destinations, with birds wintering among the vast flocks of Russian Whitef ronts there.
It is, however, very rare throughout its range, and particularly in the west, with a world population of only around 28,000-33,000 birds. It is declining steadily and is a Red-listed Species of Conservation Concern. In recent years the Scandinavian population has become almost extirpated and has been augmented by reintroduction schemes, birds from which winter at traditional sites in The Netherlands.
In Britain this species used to be an annual vagrant, mainly among Russian White-fronts at Slimbridge, Gloucestershire, but also in the Yare Valley, Norfolk, among Taiga Bean Geese. Occurrences at these sites have now ceased, however, and today this species is an extreme rarity in Britain, with any future individuals most likely deriving from Scandinavian/Dutch reintroduction activity.
This is a small, compact goose, smaller than Greater White-front and often picked out on this feature alone. It differs structurally too, having a particularly small, short bill, a rather oval, ‘high-crowned’ head with a steep forehead, a short neck (another good feature at long range), short legs and relatively long wings which project well beyond the tail-tip. Lesser White-fronts feed actively and may move more rapidly through flocks of larger geese, thereby aiding their detection. Adults resemble Russian White-fronts in their basic plumage hues and bare parts colours, but are a little darker overall and have a more extensive white front which extends higher on the forehead and can reach the mid-crown. This can be surprisingly hard to judge on a head-on view, but is perhaps easier to evaluate f rom the side. Adults also have, on average, less extensive belly barring. The other important feature common to all ages is a neat yellow eyering.
The call resembles that of Greater White-f ront, but is even higher pitched.