Backyard bird feeders may ruffle some feathers, attracting aggressive breeds like house sparrows and doves while discouraging native species that eat insects and nectar, researchers said Monday.
Plants & Animals
May 4, 2015
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Reproduction at old age involves risks that may impact one's own life and may impose reduced biological fitness on the offspring. Such evidence, previously obtained in humans and other taxa under laboratory conditions, has ...
Evolution
Mar 9, 2015
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14
It's been known for decades that animals such as chimpanzees seek out medicinal herbs to treat their diseases. But in recent years, the list of animal pharmacists has grown much longer, and it now appears that the practice ...
Plants & Animals
Apr 11, 2013
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In the bird world, male and female blue tits are hard to distinguish for the human observer. However, in the UV-range, visible to birds, the male is much more colourful. A closer look at the monogamous mating system of these ...
Evolution
Apr 3, 2013
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Auditory systems differ between sexes in sparrows depending on the season, a Georgia State University neuroscientist has found. The work adds to our knowledge of how the parts of the nervous system, including that of humans, ...
Plants & Animals
Dec 10, 2012
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(Phys.org)—A new University of South Florida study of house sparrows, which have become one of the world's most common invasive species, is providing scientists with physiological and behavior markers that could help keep ...
Plants & Animals
Sep 11, 2012
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(PhysOrg.com) -- In many bird species males have a more elaborate plumage than females. This elaborate plumage is often used to signal body condition, to intimidate rivals or to attract potential mates. In many cases plumage ...
Plants & Animals
Oct 21, 2011
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(PhysOrg.com) -- The size of the black breast bib - the badge - and bill colour of male House Sparrows change over the course of the year. Such ornaments usually signal quality and dominance of a male to his conspecifics ...
Plants & Animals
Jun 4, 2010
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House sparrows (Passer domesticus) have adapted to urban environments, which are changing and growing faster than ever before. A range of both biotic and abiotic factors—including habitat fragmentation, changing food availability, ...
Plants & Animals
Jun 27, 2022
0
7
The European House Sparrow has a story to tell about survival in the modern world. In parts of its native range in Europe, House Sparrow numbers are down by nearly 60%. Their fate in the U.S. and Canada is less well known. ...
Plants & Animals
Feb 11, 2021
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