Sentences with phrase «by migrating birds»

Once in the water supply, in theory, a future pathogen could spread outside the local area, carried by people or by migrating birds or animals.

Health officials are following bird flu worldwide, because of the chance that it could be brought to this country by migrating birds.

The new study shows that small invertebrates can be transported over hundreds of kilometers by migrating birds.

Not exact matches

A crucial feeding ground for migrating birds has been almost destroyed by pollution and a bad winter, but help is at hand in the form of an all - you - can - eat buffet

Many migrating birds fly at night — often, all night — to cut the risk of being seen by predators and to avoid overheating under the hot sun.

The European robin and other birds know where to migrate by sensing the direction of the Earth's magnetic field.

The birds that migrate to the south side of the lake in winter still draw bird watchers, but that is primarily because all the marshlands in the Imperial Valley, where the Salton Sea lies, are taken up by agriculture.

The idea that migrating birds navigate across continents and oceans with the help of an internal compass had been suggested a century earlier by a Russian zoologist, but attempts to prove it had failed.

Much as migrating birds or spawning insects rely on the timing of spring so that there is enough available food when they arrive in a given region, so, too, the salmon rely on the timing of phytoplankton blooms, followed by the zooplankton bloom that then feeds baby salmon.

This tricks the birds into thinking the people are their parents, allowing the team to later guide young birds to migrate south to Florida for the winter by leading them in ultralight aircraft.

And it is Audubon who in 1833 identified the passenger pigeon, Ectopistes migratorius, as the most numerous bird on the continent, highlighting the point by describing a mile - wide flock of migrating pigeons that passed over his head and blocked the sun for three straight days.

In contrast, migration ranges of soaring birds, illustrated by raptors, vultures, and albatrosses that migrate globally with minimal energy consumption, are larger than those of flapping birds and independent of body size.

Migrating birds navigate by sensing Earth's magnetic field, but the exact mechanisms at work are unclear.

Squadrons of planes can save fuel by flying in a V formation, and many scientists suspect that migrating birds do the same.

Their findings reveal that H5N8 was most likely carried by long - distance flights of infected migrating wild birds from Asia to Europe and North America via their breeding grounds in the Arctic.

More than 10,000 migrating birds in the U.S. have died from an outbreak of avian cholera caused by reduced water flowing through marshlands of Oregon and California, according to federal wildlife officials.

The Let»em Rest, Let»em Nest program was created by Audubon South Carolina and the Charleston Animal Society in efforts to decrease human - caused disturbance to declining migrating and nesting coastal birds and promote responsible dog ownership on the beach.

The eggs, or oocysts, are ingested by rodents, birds and other ground - feeding mammals, such as sheep, cattle, goats and pigs, which then migrate to the brain and muscle tissue.

Could it be that the birds not seen in the cat area were also responding to a specialized habitat — by «migrating» to a place with less human activity (e.g., the no - cat area), for example?

Unable to prevent an estimated $ 5 million to $ 10 million worth of bird damage each fall to a sunflower crop which fetches between $ 330 million and $ 500 million per year, Wildlife Services staff theorized in 1994 that they might accomplish more by poisoning the birds as they migrate north each spring, so that fewer would join the fall migrations southward.

There are more trails and migrating birds at the Massaciuccoli Lake near Torre del Lago by the sea.

Green's paintings celebrate plant forms enveloped in darkness, but illuminated by starry skies; migrating butterflies driven by their near mythic celestial navigation systems; and African Weaver Birds displaying their spectacular nest - making skills in surreal and allegorical settings.

The exhibit title is inspired by the practice, in some species of small birds, of migrating in the wrong direction.

Elsewhere, drawing from a lighter poetic imagery, Barbara Visser and Gintaras Didžiapetris use a flock of migrating birds as a natural metaphor, while Thomas Bakker screens footage of a wandering air balloon and Hella Jongerius contributes an hour - by - hour color changing spectrum.

Bringing together slime moulds, submarine creatures and migrating birds, the show looks at «processes of emergence of non-neuronal and expanded forms of intelligence, both in nature and technology» and features work by Joey Holder, Anna Mikkola and Jenna Sutela.

More Interesting Green Architecture from Latin America: Spectacular Brazilian Treehouses by Casa Na Arvore (Slideshow) Fake Trees Art Installation is a Home for Migrating Birds in Chile Shipping Container Home Prototype in Buenos Aires

We live in the path of thousands of migrating birds that will be killed by the blades of the turbines.

My daughter comes here all the time and so drives by the Delta and sees all the migrating birds.

More than 10,000 migrating birds in the U.S. have died from an outbreak of avian cholera caused by reduced water flowing through marshlands of Oregon and California, according to federal wildlife officials.

By John Murawski State officials have approved a proposed 49 - turbine wind farm in Eastern North Carolina that critics worry could kill migrating birds from the Pocosin Lakes National Wildlife Refuge nearby.

Migrating wild birds are killed in large numbers by office buildings.

I know that my map will be a little cluster around NYC of urban birds and migrating guests... and soon I'll be able to call each one of them by name.

If clearing is not done by that date it would be a major set back for the company and plans could not proceed until after the migrating birds had left.