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Sparrow numbers 'plummet by 68%' Options
Pastor Dale Morgan View profile
More options Nov 20, 6:43 am
From: Pastor Dale Morgan <dgrmor...@telus.net>
Date: Thu, 20 Nov 2008 03:43:06 -0800
Local: Thurs, Nov 20 2008 6:43 am
Subject: Sparrow numbers 'plummet by 68%'
*Perilous Times
Sparrow numbers 'plummet by 68%'*
The house sparrow feeds on insects like aphids during the summer months
BBC - The population of house sparrows in Britain has fallen by 68% in
the past three decades, according to the RSPB.
A report by the charity said the paving over of front gardens and
removal of trees had caused a big decline in insects that the birds eat.
It suggests sparrows are now disappearing altogether from cities such as
London, Bristol and Edinburgh.
Dr Will Peach, from the RSPB, said many gardens had become "no-go areas
for once-common British birds".
Starving chicks
Scientists from the RSPB joined forces with De Montfort University and
Natural England to investigate the decline of the house sparrow.
They studied numbers in Leicester over a three-year period and found
that they fell by more than two thirds.
Dr Peach said every pair of house sparrows must raise at least five
chicks a year to maintain the population, but many were starving to
death in their nests or were too weak to live long after fledging.
The study did find that chick survival was higher in areas where
insects, such as aphids, were more abundant.
[Gardeners can help by] being lazy, doing nothing and allowing the
garden to be a little bit scruffy
Dr Will Peach, RSPB
Dr Peach said: "Peanuts and seeds are great for birds for most of the
year, but sparrows need insects in summer - and lots of them - to feed
their hungry young.
"Honeysuckle, wild roses, hawthorn or fruit trees are perfect for
insects and therefore house sparrows.
"The trend towards paving of front gardens and laying decking in the
back, and the popularity of ornamental plants from other parts of the
world, has made many gardens no-go areas for once common British birds."
He said gardeners could help sparrows by "being lazy, doing nothing and
allowing the garden to be a little bit scruffy".
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Urban birder David Lindo on how to attract sparrows to gardens
The study, published in the journal Animal Conservation, concluded that
the decline in house sparrows in Britain began in the mid-1980s.
In London, numbers fell by 60% between 1994 and 2004.
The house sparrow has been added to the list of species identified by
the UK Biodiversity Action Plan as in need of greater protection.
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