Sociable Lapwing (Vanellus gregarius)

Sociable Lapwing

[order] CHARADRIIFORMES | [family] Charadriidae | [latin] Vanellus gregarius | [UK] Sociable Lapwing | [FR] Vanneau sociable | [DE] Steppenkiebitz | [ES] | [NL] Steppenkievit

Subspecies

Monotypic species

Physical charateristics

Large, strikingly patterned plover. Adult greyish with black and chestnut belly. White supercilium and black crown and eye-stripe. Winter adult brownish but retains supercilium and crown pattern. Juvenile brown, slightly scalloped above, and streaked black below with large white supercilium. Similar spp. White-tailed Lapwing V. leucurus lacks supercilium and crown patch, has longer legs and no black subterminal tail-band. Voice Harsh kretsch kretsch and a rapid chattering.

wingspan min.: 70 cm wingspan max.: 73 cm
size min.: 27 cm size max.: 30 cm
incubation min.: 21 days incubation max.: 25 days
fledging min.: 33 days fledging max.: 25 days
broods: 1   eggs min.: 3  
      eggs max.: 5  

Range

Eurasia : Central

Habitat

It has a sporadic and irruptive pattern of semi-colonial breeding, mainly in the transition zones between Stipa and Artemisia grassland steppes where bare saline areas occur near water-bodies. Exact breeding habitat requirements are poorly known. It has recently been postulated that it evolved to nest in the short swards left in the wake of enormous wintering herds of saiga Saiga tartarica (currently listed as threatened). The wintering grounds are dry plains, sandy wastes and short grass areas, often adjacent to water.

Reproduction

Monogamous. Before start of breeding season, parties of 6-10 birds land on open field for display fights of males in front of females. There is a sporadic and irruptive pattern of semi-colonial breeding with neighbouring parties 25-50 m apart, each consisting of 5 up to 20 pairs, each pair is territorial. Eggs and nesting habits closely resemble those of Northern Lapwing Vanellus vanellus. The breeding season falls between the end of March and early July, most eggs being laid between mid-April and mid-June. The earliest clutch recorded was on 26 March, and a few pairs may lay late or second clutches up until late July. The nest is situated in open country and is usually a simple scrape in the earth, often unlined except for a small amount of accumulated rubbish or leaves, grass, moss etc. When the substrate is damp and boggy, such as the shores of lakes and rivers, birds may construct a nest of grass and weeds. As with most plovers, the full clutch usually contains four eggs. Incubation is about 25 days and done by the female. The young fledge 35_40 days later.

Feeding habits

Insects, such as grasshoppers, beetles, crickets and moth larvae, spiders frequently small amounts of plant material.
Usually some small stones in stomach, occasionally remains of vertebrate bones and mollusc shells.
Diet varies through breeding season, in winter, apparently chiefly grasshoppers and other insects. Diurnal

Conservation

This species is listed as Critically Endangered because its population has undergone a very rapid reduction, for reasons that are poorly understood; this decline is projected to continue and increase in the future. Recent fieldwork in Kazakhstan (and counts in Turkey and the Middle East) has shown the population to be substantially larger than previously feared, and further research may show that the species warrants downlisting to a lower category of threat.
Sociable Lapwing status Critically Endangered

Migration

Large, strikingly patterned plover. Adult greyish with black and chestnut belly. White supercilium and black crown and eye-stripe. Winter adult brownish but retains supercilium and crown pattern. Juvenile brown, slightly scalloped above, and streaked black below with large white supercilium. Similar spp. White-tailed Lapwing V. leucurus lacks supercilium and crown patch, has longer legs and no black subterminal tail-band. Voice Harsh kretsch kretsch and a rapid chattering.

The species migrated in very large flocks, although this is evidently no longer the case. Spring migration through the Gilgit region occurred in March and April with a return passage in autumn, although birds do not remain off-passage for long: flocks paused by the Kurram river for only a day or two. Nearby in Kohat they passed through in small flocks from the end of February until the end of March, 1904-1907. The precise routes taken by birds appear to vary considerably from year to year, since large numbers passed through Kohat in 1905, but few in 1906.

While the bulk of the Indian wintering population is centred on Rajasthan, Uttar Pradesh and Gujarat, birds have been recorded as far south as Kerala, possibly owing to drought, related to failure of the monsoon. Post-breeding flocks were formerly sometimes of several hundred or even up to 1,000 and even in recent years in Kazakhstan July-August flocks of 70-108 birds have been recorded in Kustanai Oblast, although birds on spring migration in south-eastern Kazakhstan are mostly alone or in very small flocks.

Despite dwindling numbers the species remains prone to vagrancy, regularly occurring in the western Palearctic as far west as Britain, while in Asia the records from China, the Maldives and Sri Lanka represent similar deviations from normal migration patterns.

European birds winter mainly in south-west Asia and north-east Africa. Departures from steppe breeding grounds begin early August, but movements slow and protracted. Leaves wintering areas March and early April, reaching southern breeding grounds about mid-April, but northern steppes not until mid-May.

Distribution map

Sociable Lapwing distribution range map

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