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Bird Control
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| You are viewing results 1 to 7 of 7 |
Feral pigeons, Columba livia var
Biology:
Pigeons are birds that are descended from domesticated strains of
the rock dove, and are found throughout Britain, these birds are
closely associated with humans and are common in urban environments.
Feral pigeons nest in or on buildings or other structures, where they
are usually found on ledges or in hollows often under eaves or on
girders. The peak nesting time for these pest birds is between March
and July, although they are capable of breeding throughout the year.
Public Health
Birds such as pigeons carry a range of diseases, some of which may
be transmitted to humans if droppings contaminate foodstuffs. For
this reason the presence of pigeons cannot be tolerated in and around
food premises. Pigeons also carry mites that can cause skin disease,
and dust from their feathers can cause respiratory problems.
Damage
The droppings of pigeons are not only unsightly but are acidic and
can cause damage to buildings and machinery. Nesting materials,
droppings and feathers can block gutters and air vents. Slippery
droppings from birds can compromise safety on pavements and fire
escapes.
Control
Pigeons and other species of birds can be effectively excluded
from buildings by the use of purpose-made, durable netting, but this
should be installed by professional pest controllers. A relatively
cheap, and highly effective alternative treatment for pigeons is to
use pigeon
spikes, which make it impossible for birds such as pigeons to
settle on eaves and ledges, thus removing the problem of fouling and
nuisance.
Seagull, herring gull Larus argentatus
The Herring gull can be distinguished from other gulls by its
large size and grey upperparts, which earn it the alternative names
of 'silver back' and 'silvery gull'. During summer, adults have white
heads, but in autumn they become streaked with brown. These birds
have bright yellow bills with a red tip, and pink legs. The juvenile
birds are greyish-brown; the grey upperparts do not develop until
after the second winter. A number of vocalisations are produced,
including the well-known raucous 'laughing' call.
The herring gull has a complex distribution throughout the
northern hemisphere, and consists of a number of subspecies. The
population occurring in Britain, Ireland, France and Iceland belong
to the subspecies Larus argentatus argenteus. Seagulls breed around
most of Britain's coasts; they are absent from some areas of eastern
England, but are widespread inland during the winter. These birds
breed in a range of habitats, including cliffs, beaches, small
islands, inland sites and even buildings. They also exploit rubbish
dumps, particularly during winter.
The herring gull is a supreme opportunist as far as birds go and
scavenger, feeding on discarded fish offal, refuse, bird chicks,
worms and other invertebrates. It breeds in colonies and the nest is
usually an untidy heap of grass, seaweed and other vegetation. Two to
six eggs, variable in colour and patterning, are laid after April;
incubation, which is carried out largely by the female, takes between
25 and 27 days. Both parent gulls share paternal care of the downy
chicks, which fledge after around 30 days.
Control
There is no instant solution to getting rid of seagulls
effectively and action is best focused on prevention and stopping
birds roosting. There are limited public health grounds for seagull
control and surveys undertaken by various institutions have shown
culling is mainly unsuccessful for controlling birds; shortly after a
cull the numbers increase back to the original optimum number.
We would therefore recommend the use of deterrent devices such as
seagull
spikes for control of birds which prevent the birds building
their nests i.e. bird-proofing measures. Work should be done outside
the nesting season as interfering with their nests may be considered
illegal, and could be dangerous.
Starling, Sturnus vulgaris
These birds are about 21.5cm long when grown. The plumage is
blackish with a green and purple iridescence, especially in summer.
Pale spots can be seen on these birds in winter that will fade away
by spring. The juvenile birds are dull brown in summer but moult in
autumn to adult plumage. Starlings are distinguishable from
blackbirds by their shorter tails and triangular shape of wings in
flight. These birds are recognised for their chattering mimicking
song often sounds like several birds; starlings can imitate other
species. Damage results from both the birds feeding and roosting
habits, and consists mainly of fouling and food removal. In rural
roosts, which are usually in dense thickets, the combined action of
large quantities of guano from birds and the weight of birds on
branches can eventually kill the trees. In cities, droppings from the
birds foul pavements, disfigure buildings and monuments and erode
stonework. Starlings occasionally take grain from winter cereal
stores, and at intensive animal husbandry units these birds may take
a considerable proportion of animal feed. In addition to these
problems, there is the possibility that starlings may act as vectors
of disease.
Control
We recommend deterrent strategies for these smaller nuisance
birds. New on the market, try stainless steel pigeon, starling and
sparrow spikes.
House Sparrow Passer domesticus
The House Sparrow is primarily a grain eater, feeding on ripening
grain in fields, however, in urban situations these birds have
learned to exploit food stores, especially of soft groceries such as
cakes, where they will feed directly or after penetrating thin
packaging. As a result of these feeding habits, sparrows can cause
fouling of foodstuffs, with associated breakdown of hygiene. In
gardens, these birds may peck at the soft spring growth of
vegetables, and also disbud fruit trees.
Control
We recommend deterrent strategies for these smaller nuisance
birds. New on the market, try stainless steel pigeon, starling and
sparrow spikes.
Important:
The UK Wildlife and Countryside Act 1981 protects all wild birds.
It is an offence to kill or injure any birds or their nests or eggs
unless acting under a licence and only in compliance with the
conditions of that licence. Noise from birds, that they leave
droppings or the fact that they open rubbish bags are not reasons
under the Act and, therefore, killing or injuring birds for these
reasons is an offence and offenders can be prosecuted. More detailed
information on this is available expert advice on current legislation
from DEFRA (Department for Environment, Food and Rural Affairs) 0207
904 6000 or on their web pages at:
http://www.defra.gov.uk/wildlife-countryside/vertebrates/gen-licence.htm
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