numbers could be hit by the building of new homes on existing urban gardens as they prefer residential areas to parks in towns and cities, research suggests.
are now on the red list of species which are of high conservation concern.
Numbers of house sparrows
have decreased by 17%, while sightings of sparrows have fallen by an astonishing 79% since the survey started 31 years ago.
On Saturday, the World House Sparrow
Day, Dikshit said: " It is time to focus on the survival of house sparrows
as there has been a sharp decline in their numbers in the last decade." Though some experts consider their disappearance as a bio- indicator of the degradation of urban environments, others claim sparrow numbers are not declining.
Tits, greenfinches, robins, wrens, house sparrows
, nuthatches and woodpeckers love the fat-rich unsalted peanuts.
Parasite Host n HP PL HG LK Cardinalis cardinalis (Northern Cardinal) 37 13.5% 5.4% - 2.7% Passer domesticus (House Sparrow
) 55 9.1% 1.8% 1.8% - Carpodacus mexicanus (House Finch) 34 2.9% 2.9% 2.9% 2.9% Pants carolinensis (Carolina Chickadee) 49 2.0% - 2.0% 2.0% Haemoproteus was the most frequent occurring parasite in this study as well as in the studies of passeriform birds in other regions (e.g., Williams & Bennett 1978 in New Jersey and Maryland; Bennett et al.
"The loss of deciduous greenery within urban areas may have made life much more difficult for birds like house sparrows
that need large numbers of insects to feed their young."
A major effort that will help boost the capital's dwindling house sparrow
population and increase biodiversity has been launched by Westminster City Council.
To address these questions, we compared the VecTest WNV antigen assay with standard methods of virus detection from oral and cloacal swabs taken 1-4 days postmortem from experimentally infected American Crows (Corvus brachyrhynchos) and House Sparrows
In March of this year, the Independent drew attention to the strange disappearance of the house sparrow
(Passer domesticus) from Britain.
The population of house sparrows
has steadily declined since the late 1970s and over the last ten years has dropped to around 4.5 million pairs from 5.5 million.
I vividly remember the arrival of the house sparrows
. They descended one autumn morning in a flock of 20 or so and stayed all winter, hogging my feeding station, tearing up my yard, even leaving their mark on the hood of my car.