Sentences with phrase «about a bird species»

The researchers compared egg shape with lots of data about each bird species, but found no correlation with clutch size, environmental factors or nest characteristics.

How do you gather information about a bird species that spends 99 percent or more of its time at sea?

Not exact matches

Conservationist Norman Myers, author of The Sinking Ark: A New Look at the Problem of Disappearing Species (Pergamon, 1979), estimates that with the advent of technology between 1600 and 1900, an average of one species of bird or mammal (little is known about reptiles, amphibians, fishes, invertebrates and plants) disappeared every four years, compared to one every 1,000 years during the «great dying» of the dinSpecies (Pergamon, 1979), estimates that with the advent of technology between 1600 and 1900, an average of one species of bird or mammal (little is known about reptiles, amphibians, fishes, invertebrates and plants) disappeared every four years, compared to one every 1,000 years during the «great dying» of the dinspecies of bird or mammal (little is known about reptiles, amphibians, fishes, invertebrates and plants) disappeared every four years, compared to one every 1,000 years during the «great dying» of the dinosaurs.

There, you can read about Hispaniola's great biodiversity, including 30 endemic bird species; the importance of the island to birds that winter and migrate through the West Indies and breed in North America; and the critical role of shade coffee in preserving habitat on an island with a very high level of deforestation.

Participants not only learn and share information about species that visit their yards and feeders at this time of year, they contribute knowledge to more than 40 years of winter bird - feeder sighting records.

Nine Mass Audubon travelers, joined Mass Audubon ornithologist, Wayne Petersen and local expert, Woody Wheeler in the northwestern corner of the United States at a perfect time of year to appreciate flowers in riotous color, birds in the midst of nesting, and a variety of mammal species going about their daily routines.

Want to learn more about how to attract birds to your yard, or why they are behaving in a certain way, or just how to identify species that look similar?

Mass Audubon's Birders Meeting, the largest conference of its kind in New England, returns to the UMass Boston campus Sunday, March 11, when hundreds of birding enthusiasts will gather to hear the latest avian news from experts, learn more about specific species, and catch up with like - minded nature lovers they've met at previous Meetings.

The popular conference brings together hundreds of birders and others who care about nature to learn the latest in the field, make new birding companions — and look forward to exploring fields and forests in search of their favorite species.

As the conference title suggests, participants will learn about both high - elevation habitats and low - lying coastal islands that attract a suite of breeding, migrating, and wintering species — and thus also provide exciting birding opportunities.

UK regulations made pursuant to the EU Birds Directive (originally enacted in 1979, which you can read in its latest amended and consolidated form here) aim to protect endangered bird species and habitats, but do not prescribe any rules about cats or housing or distance from development.

How much does one Southold Town homeowner care about keeping fencing for endangered bird species» nests off their beachfront property?

But traffic poses even bigger problems for other species, particularly birds: Worldwide, it kills about a quarter of a billion of the animals annually.

Many Eurasian birds have evolved defenses against cuckoos, but cowbirds are less picky about choosing their hosts, and might threaten other species that are not parasitized by cuckoos and have no defenses.

In an engaging report from the South Hills of Idaho, Nick Neely wrote about the discovery and probable disappearance of North America's newest bird species, the Cassia crossbill.

Zuckerman and his team traveled to places as diverse as Qatar and Pittsburgh and photographed about 90 species of birds.

Dear EarthTalk: I understand there is good news about the recovery of bird species like the peregrine falcon, bald eagle and others owed to the 1972 ban on DDT.

For another, looking at still - living related species like reptiles and birds — something paleontologists regularly do to intuit facts about dinosaur metabolism and physiology — can't answer every question, because birds and reptiles heal in very different ways.

The package, which was collected from the Moluccan island of Ternate, however, did not contain information about Malayan bird species that Darwin had requested, but a scientific manuscript of about 20 pages.

This species can breed in pairs and in groups of about 6 to 12 birds, which allows a comparison between the two strategies.

About 40 percent of the bird species listed by the IUCN didn't make the ESA list, and over 80 percent of other groups like fish, amphibians and insects.

Although there is nothing illegal about international trade in tree sparrows, the size of the shipment — at least eight times the British breeding population of this species — is causing anxiety at the Royal Society for the Protection of Birds.

Most research exploring patterns of species survival has focused on birds; little is known about the physiological mechanisms that allow mammals to survive in urban environments.

There are about 9,000 species of birds, about half of which are songbirds.

Previous studies suggest that the Late Cretaceous skies were only occupied by much larger pterosaur species and birds, but this new finding, which is reported in the Royal Society journal Open Science, provides crucial information about the diversity and success of Late Cretaceous pterosaurs.

The results suggest that the last common ancestor of all modern birds — in other words, the species at the base of the evolutionary family tree that includes all living bird species — lived in West Gondwana, a landmass that included what are now fragments of South America and large portions of Antarctica, about 95 million years ago.

The observations should provide a wealth of data about birds and their habits, such as regional differences in the diet of a species.

«This ongoing study provides us information about these unique birds that was essentially lost when the populations disappeared in the wild and will help us with our ongoing efforts to recover this species.»

Knutie says the flies now infest all land birds there, including most of the 14 species of Darwin's finches, two of which are endangered: fewer than 100 mangrove finches remain on Isabela Island, and only about 1,620 medium tree finches exist, all on Floreana Island.

Being able to isolate eggshell DNA will give detailed information about how ancient bird and reptilian species lived and died.

Using methods and ideas from mathematics, physics and biology, they characterized the shape of eggs from about 1,400 species of birds and developed a model that explains how an egg's membrane determines its shape.

But the virus has been found in more than 60 bird species and about a dozen mammals; in a little more than a year, it has spread to 11 states along the East Coast and the District of Columbia.

Steve: The first part of the book, before you get to the case - by - case analysis of the threatened and endangered birds, the first part of the book is just like a traditional book, you can sit there and read it and it has various sections and one of them talks about birds, as you know, literally canaries in coal mines and the rest of the bird species out there as our canaries in the ecological coal mine that we are in.

One of about 40 manakin species found in the tropics and subtropics of the New World, Machaeropterus deliciosus gets its common name from the male's peculiar wing feathers, which play a key role in the bird's unusual mating strategy.

Mastication reduced the number of bird species by about 50 percent and reduced total numbers of birds by about 60 percent.

The parasitic nest fly (Philornis downsi), which looks similar to a typical house fly, lays its eggs in the nests of Darwin's finches — the 15 species of bird on the Galápagos that helped inspire the famed biologist to formulate his ideas about natural selection.

It's now largely (but not entirely) accepted among biologists that dinosaurs are the forerunners of birds, Greenwold says, and that certain species of dinosaurs began to evolve feathers about 150 million years ago.

Fishes account for over half of vertebrate species, but while groups such as mammals, birds and reptiles have been fairly well understood by scientists for decades, knowledge about relationships among many types of fishes was essentially unknown — until now.

Unable to compete with the bigger bird, the smaller species instead evolved a smaller beak to specialize in smaller seeds — all in about 20 years.

That's about the same size as modern - day hummingbirds and sunbirds, but the ancient bird isn't related to them or to any of today's hundreds of species of birds that get their nutrition from flowers.

A surprising proportion of species found in Australia are native — nearly half the 770 bird species, most reptiles and amphibians including 93 per cent of the frogs, most of the 141 marsupial species, about 90 per cent of the 20 000 named plants, and the majority of fish species in temperate waters.

In two blissful hours of hushing and peering and pointing, and of Paul undoing his backpack to consult his Sibley Guide, then putting it back and redoing all the straps, we have carefully and irrevocably identified about nine times more species of birds than I frankly knew existed.

While populations of wild animals have halved, only about 1 to 2 per cent of species have been lost so far — at least in well - studied groups such as mammals and birds.

They determined it was around 180,000 years ago when the two parental species originally mated, and that both parental species diverged from a common ancestor about 300,000 years ago, making all three very recent birds by Amazon rainforest standards.

To learn more about this unusual characteristic, the researchers took a closer look at the keratin structure of the crown feathers of all three bird species using an electron microscope.

It is interesting to contemplate a tangled bank coded with many species of plants of many kinds, with birds singing on the trees, with various insects flitting about and with worms crawling through the damp earth and to reflect that these elaborately constructed forms, so different from each other and dependent upon each other in sole complex of manner, have all been produced by laws acting around us.

Scientists have unearthed a new bird species from fossils in the Canadian Arctic dating back about 90 million years, making them the oldest records of avian species found so far north and suggesting an intense warming event occurred during the late Cretaceous period.

The researchers wanted to know more about the species» methods of courtship, because it's unusual for a bird couple to use both song and dance.

Named Caihong juji, the newly discovered species can help scientists know more about the evolution of iridescence in birds.

A century later the U.S. Fish and Wildlife Service convened a roundtable of experts to look at how this most populous bird species ever was extinguished in about a century and what lessons could be learned from this extinction event.