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Latest Gulls Stories

Understanding The Evolving Diversity Of Microbial Life In Bird Guts
2013-05-31 12:26:54

University of Veterinary Medicine Vienna Gut bacteria are known to have a central role both in human and in animal health. Animals acquire different bacteria as they age but how the microbial communities in the bodies of wild animals change over time is not well understood. Wouter van Dongen and colleagues at the Vetmeduni Vienna have examined the gastrointestinal bacteria of chick and adult black-legged kittiwakes. Surprisingly, the microbial assemblages of chicks and adults generally...

Nocturnal Gulls Hunting Behavior Determined By Lunar Cycle
2013-03-28 12:14:40

Max-Planck-Gesellschaft Swallow-tailed gulls hunt most often under a new moon, when fish come to the surface under the cover of darkness The lunar cycle controls the behavior of various animal species: owls, swallows and bats, for example, align their activity with the phase of the moon to maximize their hunting success. However, marine life is also affected by the moon. Many species of fish hide from their enemies in the depths of the sea during the daytime and only come up to the...

2011-07-07 00:14:46

Study suggests kittiwakes use body odor to assess genetically compatible mates Male and female kittiwakes smell different from each other, according to research by Sarah Leclaire from the Centre national de la recherche scientifique at the Universit© Paul Sabatier in France and her team. Their work also suggests that the birds' body odors might signal the genetic makeup of individual birds, and could be used in mate choice to assess the genetic compatibility of potential partners. The...

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2011-01-05 09:10:20

One of Britain's best known seabirds winters on opposite sides of the Atlantic depending on whether its breeding attempt has been successful according to new research published today in the journal Proceedings of the Royal Society B. The findings highlight previously unsuspected links between summer breeding performance and wintering distributions of kittiwakes. The research team was led by Dr Maria Bogdanova from the Centre for Ecology & Hydrology (CEH) in conjunction with colleagues...

2009-06-29 18:00:00

An Austrian-led study has found the black-legged kittiwake bird, a monogamous species, has the ability to choose partners with a different genetic profile. The researchers, led by Richard Wagner from the Konrad Lorenz Institute for Ethology of the Austrian Academy of Sciences, said avoidance of inbreeding is evident among humans, and has been demonstrated in some shorebirds, mice and sand lizards. Now the black-legged kittiwake has been added to that list. The scientists said they tracked 10...

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2009-06-11 14:15:00

A new report shows that Scotland's seabird numbers plunged by 19 percent between 2000 and 2008, according to BBC News. The major cause was almost certainly a shortage of food due to a drop in the number of small fish, such as sandeels, according to Scottish Natural Heritage (SNH). SNH said rising sea temperatures were probably affecting the fish populations as well. RSPB Scotland called the figures "deeply worrying," as declines have been greater in areas such as the Northern Isles and down...

2009-01-22 00:17:34

A couple of ivory gulls, which usually live in the high Arctic, have been spotted in Massachusetts. The Massachusetts Audubon Society said birders are flocking to Gloucester, Mass., where an ivory gull was spotted Saturday -- the first sighting of the species in the Bay State in two decades, The Boston Globe reported Wednesday. A second ivory gull was spotted Tuesday in Plymouth, Mass. The Cornell Lab of Ornithology Web site said the bird is rarely seen south of the Bering Sea or Canada's...

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2008-09-04 17:14:02

Scientists at the Norwegian Polar Institute reported Thursday that the tiny Arctic ivory gull has the highest known concentrations of PCBs, chemicals long used in the pesticide DDT along with plastics, paints and other products. The gull has set a new record as the bird most contaminated by the two prohibited toxins, the scientists said. There are currently about 14,000 ivory gulls, which inhabit areas from Canada to Siberia. The current research was conducted following reports that the...

2008-08-14 00:00:23

The recent wet summers have been blamed for a decline in seabirds nesting and breeding in Westcountry waters. For the last two years, kittiwakes at colonies including the Isles of Scilly and Hallsands, in South Devon, have not produced any young. There have been reports of adult birds failing to complete their nests or lay eggs. Dr Russell Wynn, of the National Oceanography Centre, who has been working with other marine scientists and the RSPB, said seabirds had been deterred from the...

2008-07-14 15:00:27

By DAVID ROSS HIGHLAND CORRESPONDENT LIKE the canary in the coalmine, our seabirds' welfare indicates the health of our marine environment and it has already sounded the alarm, according to RSPB Scotland. Yesterday it urged the Scottish Government to put the environment at the heart of its consultation on Scotland's first marine bill, published on Monday. According to the charity, early reports of seabird breeding performance on its coastal reserves indicate continuing problems for the...


Latest Gulls Reference Libraries

Swallow-tailed Gull, Creagrus furcatus
2009-06-04 22:59:50

The Swallow-tailed Gull (Creagrus furcatus) is a species of seabird of the gull family. It is found in the equatorial seas where it spends most of its time hunting on the open ocean. Its main breeding grounds is on the cliffs of the larger Galápagos Islands, and on some of the smaller islands. It is typically found along the eastern islands where the water is warmer. It is also found in smaller numbers on Malpelo Island off the coast of Colombia. It is the only fully nocturnal seabird in...

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2009-04-01 14:08:45

The Ivory Gull (Pagophila eburnea) is a species of bird that breeds in the high arctic and typically found through Greenland, northernmost North America, and Eurasia. It is a short distance migratory species with most of the population wintering further south at the edge of the pack ice. Some birds may winter in more temperate regions. The adult is 17 inches in length. It is more pigeon-like in shape rather than typical gulls. It has completely white plumage. The thick bill is blue with a...

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2005-06-02 10:10:22

The Kittiwakes, from the genus Rissa, are two closely related seabird species in the gull family Laridae. The more common and widespread species, Rissa tridactyla, is known in North America as Black-legged Kittiwake. However, in Europe, where it is the only member of the genus, it is often known just as Kittiwake. Adults are on average 40 cm in length and have a wingspan of 90"“100 cm. They have a white head and body, grey back, grey wings tipped solid black, and have black legs and a...

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