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Also known as the peewit in imitation of its display calls, its proper name describes its wavering flight. Its black and white appearance and round-winged shape in flight make it distinctive, even without its splendid crest. This familiar farmland bird has suffered significant declines recently and is now an Red List species.
Overview
Latin name
Vanellus vanellus
Family
Plovers and lapwings (Charadriidae)
Where to see them
Lapwings are found on farmland throughout the UK particularly in lowland areas of northern England, the Borders and eastern Scotland. In the breeding season prefer spring sown cereals, root crops, permanent unimproved pasture, meadows and fallow fields. They can also be found on wetlands with short vegetation. In winter they flock on pasture and ploughed fields. The highest known winter concentrations of lapwings are found at the Somerset Levels, Humber and Ribble estuaries, Breydon Water/Berney Marshes, the Wash, and Morecambe Bay.
When to see them
All year round. Leaves upland areas after the breeding season and moves to lowland fields for the winter. Large numbers of N European birds arrive in autumn for the winter.
What they eat
Worms and insects
Population
UK Breeding:- 140,000 pairs
UK Wintering:- 650,000 birds
Breeding
The winter flocks begin to break up in February, when the birds will start to return to their breeding grounds.
The lapwing has a spectacular songflight. The male wobbles, zigzags, rolls and dives while calling to advertise his presence to rival males and potential mates. The birds tend to nest in loose groups. Individual territories are small about 0.4-0.8 ha and are only held until the chicks hatch.
In the breeding season, lapwings need a mosaic of habitats, because they need different conditions for nesting and for chick rearing.
The nest is a scrape in the ground, lined with a variable amount of plant material. The birds need a good all round view from the nest to spot predators, and nest either on bare ground or in short vegetation. They often choose rough or broken ground to aid concealment of the nest. Spring sown crops and rough grazing are ideal.
They lay clutches of four cryptically coloured eggs from late March to early June, and chicks hatch 3-4 weeks later. They are covered in down when they hatch, and are able to walk about and feed within hours.
Soon after hatching, the parents will lead them to suitable feeding areas, where the supply of surface invertebrates is good and the vegetation low. They particularly need to have nearby grassland, especially if it contains flood pools and damp patches.
The transfer between the nesting and chick-rearing habitats can be hazardous, and chick survival often depends on how far they have to travel. The families stay in the chick-rearing habitat until the young are ready to fly at 5-6 weeks old. Lapwings only rear one brood a year, but may lay up to four replacement clutches if the eggs are lost.
Legal status
The lapwing is fully protected under the Wildlife and Countryside Act 1981; it an offence to kill, injure or take an adult lapwing, or to take, damage or destroy an active nest or its contents.
The only exception is legitimate farming practices that cannot be reasonably delayed, although farming methods can often be modified to reduce the impact on the lapwings.
Population trends
Lapwing numbers have decreased in Britain since the middle of the 19th century. The early declines were caused by large scale collection of eggs for food. Introduction of the Lapwing Act in 1926 prohibited this, and was followed by a considerable recovery in bird numbers.
Since the 1940s lapwing declines have been driven by large-scale changes to farming. Large areas of grassland were converted to arable, marginal land was drained and improved, and chemicals were introduced for fertilisers and pest control with increasing reliance on them. By 1960 the lapwing population had stabilised at a lower level.
Another sharp and sustained decline started in the mid-1980s, with range contractions in south-west England and in parts of Wales. This followed further intensification and specialisation – abandonment of rotations, switch from spring to autumn sown crops, increased drainage, increased use of agrochemicals. Such changes have resulted in much of the arable land becoming unsuitable for nesting by April because the crop grows too high. Tillage, drainage and pesticides have also caused a reduction in food availability.
As pasture land is improved, the resulting increased risk of trampling by livestock, earlier cutting for silage and lower food availability have affected lapwings adversely. Phasing out of rotational farming and shift of arable to the east of England and pastureland to the west of England has removed the habitat mosaic that is essential for successful chick rearing.
Mosaic where grass and spring tillage fields are close together has declined significantly in recent years, and the loss of this prime habitat has resulted in a decline in lapwing numbers.
Nest failures on arable land come from egg losses during cultivation and from predation, and poor chick survival due to crop growth. Crop growth can also shorten the laying season.
The declines in lapwing population have been greatest in southern England and Wales, where the farming changes have been greatest and farmland is the only suitable habitat for the lapwing. Between 1987 and 1998 lapwing numbers dropped by 49% in England and Wales. Since 1960 the numbers dropped by 80%.
The birds have fared better in Scotland, where the crucial changes to farming were introduced later than in England and Wales. However, even there the numbers have dropped by 29% since 1987.
Lapwings have to fledge at least 0.6 young per pair each year to maintain the population. They usually can achieve this in rough grazing and unimproved pastures, but often not on arable land or improved grassland. Since the birds cannot produce enough chicks to offset the natural mortality of adults, population declines.
It is possible to halt and reverse the decline in lapwing numbers with sympathetic farming methods, which include creation of a mosaic of spring sown crops and grassland, managing grazing pressure and maintaining damp areas on unimproved grassland. Agri-environment schemes in each part of the UK provide grants to help land-owners manage their land to help lapwings.
Survival
Egg survival and hatching success varies depending on the habitat, and appears to have declined in some habitats over the past decade.
Main causes of nest failure are predation, agricultural activity and desertion. While the birds often re-lay, changes in cropping practices often result in the habitat being unsuitable for replacement clutches because the vegetation has grown too tall, thus shortening the potential breeding season.
Only about 25-40% of chicks survive to fledging. Most of the chick mortality occurs in the first few days after hatching, when chicks are most vulnerable to cold or wet weather, and when they may be undertaking hazardous journeys from nesting to feeding areas. The further chicks have to go, the lower their survival.
Once the birds have reached adulthood, they can expect to live a further 4-5 years. The oldest known individual was about 20 years. Lapwings normally breed one year after fledging.
Posted by SaffyH on 2020-08-29 08:50:37
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