Sentences with phrase «of flight feathers»

Also known as the «Queen of Bavaria Conure», the eye - catching Golden Conure has bright yellow feathers all over its body with the exception of the very tips of its flight feathers, which offer contrast in a lovely dark green.

When a parrot's wings are clipped, it is important to be sure none of the flight feathers are blood feathers, which can not be cut.

A flight feather should never be cut anywhere close to the covert feathers that cover the top of the flight feathers.

For example, the researchers showed that a gene known as Sim1, which contains an ASHCE, may be associated with the evolution of flight feathers.

The fossil has traces of crest - like feathers on its tail but was not preserved well enough to show signs of flight feathers.

Salisbury, though, thinks they must have been: the feathers have an asymmetric shape characteristic of flight feathers.

Not exact matches

``... The Spirit is like a bird, fragile alloy of heaven and earth, where wind and feather and flight meets breath and blood and bones.

Below is a special guest blog from Joel Greenberg, Nature Museum researcher and author of A Feathered River Across the Sky: The Passenger Pigeon's Flight to Extinction.

After illness made him deaf to birdcalls, Richard Prum became the first to reconstruct the plumage of feathered dinosaurs and trace the evolution of feathers to beauty instead of flight.

Darwin's beautiful idea explains why there are hundreds of thousands of species of beetles and flowering plants, why birds» feathers are ideal for flight and insulation, and why a desert plant possesses hairy leaves to reduce water loss.

Along with other research, this absolutely established that feathers evolved in dinosaurs prior to the origin of flight and prior to the origin of birds.

In Y. huali, however, the type of feather — and the creature's immense weight — indicates that flight was out of the question.

On dinosaurs, as on modern birds, feathers could have served a variety of purposes, providing lift or maneuverability during flight; a means of sending signals to other members of its species, including those of the opposite sex; or insulating against the cold.

The important implication of this theory is that feathers did not initially evolve for flight because you can't fly with down.

Many of the wing bones were cut and scraped where the flight feathers were once attached, suggesting...

The impact of colour on flight could be a further inducement for birds to make costly melanin pigment to darken feathers, she says.

When the team bombarded the fossils with charged particles and then analyzed the particles that were knocked from the surface (a technique called time - of - flight secondary ion mass spectrometry), they chemically identified the remnants of eumelanin, a pigment that typically lends a black or brown color to skin or feathers.

During the past year and a half, Scaled Composites has completed successful test flights involving both the mother - ship drop and SS2's use of what its creator, Burt Rutan, soothingly calls «feathering,» an ingenious wing - raising aerodynamic maneuver that softens its potentially violent reentry into the atmosphere.

But with the discovery in recent years of many earlier feathered dinosaurs with anatomies tailored for flight, the idea is being seriously considered.

Wing lice dine on the same fluffy feathers but spend most of their time on the wings or tail, where they hide in between barbs on the birds» large flight feathers.

Third, the birds employ the odd strategy of molting and replacing all their tail feathers simultaneously at a time when they are also replacing the primary flight feathers on each wing.

Many flightless living birds display these feathers, but they are only one small part of a multipart flight apparatus.

After spending a relatively leisurely winter and early spring luxuriating in warm tropical climates, they migrate north for a brief but highly eventful summer in North America, during which they must complete three energetically demanding and time - consuming tasks: (1) they must build nests, lay eggs, and provide for their offspring until the young reach independence, (2) they must completely replace all the feathers in their plumage as part of the annual molt, and (3) they must prepare for the fall southward migration by eating prodigiously and storing the body fat that will fuel their long - distance flights.

USDA's Mike Begier and Allen Gosser extract feathers from the engines of the downed US Airways flight.

And we can only speculate on the diversity of flight ability among extinct avian dinosaurs such as the enantiornithines and the enigmatic, four - winged microraptors, with flight feathers not only on their forelimbs but also on their legs.

The specimens document the full evolutionary spectrum of feathers, from simple strands — previously inferred only from fuzzy halos seen in rocks — to complex structures adapted for flight and diving, which Wolfe's team believes came from ancient birds.

«Up until now, the evolution of feathers was mainly considered to be an adaptation related to flight or to warm - bloodedness, seasoned with a few speculations about display capabilities» says the article's first author, Marie - Claire Koschowitz of the Steinmann Institute for Geology, Mineralogy and Paleontology at the University of Bonn.

It had been thought that Jeholornis only had feathers at the tip of its tail, spread out like a palm frond and largely useless for flight.

With a continuous surface, he says it could generate more lift than the feathers along the tail of the most primitive bird, Archaeopteryx, making it more useful for flight.

However, Stephen Gatesy of Brown University in Providence, Rhode Island, warns that we need to know how the feathers were attached to the body before we can tell how well they aided flight.

They say that the findings add to a body of evidence that feathers evolved for some purpose besides flight as Velociraptors were too big to lift off the ground.

The feathers of Confuciusornis, a 100 — million - year - old prehistoric bird, could probably not sustain vigorous flapping flight.

The fossils clearly show a small dinosaur that had flight feathers covering its legs, as well as tail and arms, forming an extra pair of wings never before seen by palaeontologists.

But the discovery of a 36 - million - year - old giant penguin skeleton in Peru, with many of its feathers preserved, is providing new clues to this bird's evolutionary flight path from air to sea.

Scientists from the University of Southampton have revealed that feather shafts are made of a multi-layered fibrous composite material, much like carbon fibre, which allows the feather to bend and twist to cope with the stresses of flight.

Sawyer and Greenwold made the case in an earlier paper that the expansion and elaboration of the feather beta - keratin gene coincides with the evolution of the feather itself, from a simple body covering to a sophisticated assembly of interconnected working parts that make powered flight, among other competitive advantages, possible.

But the past decade or two of research, which is marked by the discovery of thousands of specimens of early birds and flying dinosaurs, also shows that feathers were an early evolutionary innovation — even if they probably arose for reasons unrelated to powered flight, such as insulation or sexual display.

The majority of Californian Anna's Hummingbirds appear to have P. huitzilopochtlii feather mites on their tail flight feathers, according to a study published February 14, 2018 in the open - access journal PLOS ONE by Youki Yamasaki from Washington State University, U.S., and colleagues.

Christian, who led the study as part of his research degree (MRes) in Vertebrate Palaeontology, adds: «Our results indicate that the number, and the relative thickness, of layers around the circumference of the rachis and along the feather's length are not fixed, and may vary either in order to cope with the stresses of flight particular to the bird or to the lineage that the individual belongs to.»

Meanwhile, the lineage of modern birds evolved «huge chest muscles and wings comprised of many different types of feathers layered over each other» — features essential to high - powered flight, Brusatte explains.

The development of feathers also mirrored the development of other features associated with flight, with shorter - armed dinosaurs having short, fuzzy feathers, and full flight feathers appearing on the longer arms of Archaeopteryx and Microraptor.

There is a growing diversity of feathered dinosaurs close to the origin of birds that many research groups are looking at to understand how gliding or flight aerodynamics evolved, and whether these traits were inherited by the earliest birds.»

An international research team including Stony Brook scientist Alan Turner detail how Changyuraptor yangi helps explain the role of long tail feathers in flight evolution

The roundtable was convened at the National Conservation Training Center on October 28, 1914 and broadcast around the country.The experts included: Joel Greenberg, author of «A Feathered River Across the Sky: The Passenger Pigeon's Flight to Extinction.

The famous feathered dinosaur Archaeopteryx lived circa 150 million years ago in present - day Bavaria and is traditionally considered crucial for understanding the ancestral fashion of bird flight.

Linking up with: Justine of Sew Country Chick for Sew & Tell SaturdayHeather of Feather's Flights for You Flew Tuesdays Andrea of The Train To Crazy for Make It Wear It ThursdayPatti of Not Dead Yet Style for Visible Monday Karen of Sew Many Ways for Sew Darn Crafty

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As it crossed the stripe of sunlight between two awnings, it threaded the crimson beak of a stork through the air, a few inches above the gap; then came a long white neck, the swell of snowy breast feathers and the six - foot motionless span of its white wings and the tips of the black flight feathers upturned and separated as fingers in the lift of the air current.

Contrast «Go Fly a Kite» with poems about bird flight found in Jane Yolen's Birds of a Feather or Michael J. Rosen's The Cuckoo's Haiku: And Other Birding Poems.

It is also vital to ensure that no feathers are left at the tip of the wing like the last two longest flight ones.