Sentences with phrase «feathers than birds»

Birds fed the crude oil were less active and spent less time preening their feathers than birds fed peanut oil, said study coauthor Christopher Goodchild, an ecotoxicologist at Oklahoma State University in Stillwater.

Not exact matches

At night I lined them up on my bed: fat flakes of mica, buckeyes bigger than shooter marbles, blue jay feathers, bird bones and — if I was lucky — a cicada shell, one...

No only does America lose but the two birds who will die for nothing more than their feathers.

One of the biggest dilemmas for those who want to believe that dinosaurs evolved into birds is that the so - called feathered dinosaurs found thus far are dated to be about 20 million years more recent than Archaeopteryx.

The bench turned out better than I hoped and has held up through SEVERAL rains and run ins with bird droppings ~ I just hose it off every time one of my feathered friends decides to «use» it.

Spectacular feathered dinosaurs discovered in the last decade or so show clearly how a small group of theropod dinosaurs gave rise to the first birds, but these specimens are nearly all Cretaceous in origin, at least 20 million years younger than Archaeopteryx.

In 1833 a German researcher named Constantin Lambert Gloger noticed that birds from warmer habitats had darker feathers than those from cooler climes.

Using feather length as a proxy for nutritional status in birds, the researchers were able to rule out the possibility that smaller birds were less well nourished than their ancestors.

The researchers collected and chemically analyzed feathers from nearly 10,000 extant bird species and found that 40 % of all bird species» plumage contains the carotenoid pigment — 25 % more than previously predicted.

They are easier to mimic than a feathered bird wing, weigh less, and give better aerodynamic performance over a larger range of positions, he says.

Venerated by the Aztecs and Mayans, whose rulers wore headdresses made out of its long tail feathers, the bird has a bright green body, a red breast, and green upper tail feathers that conceal its tail; in males, these feathers are longer than its body.

The feather shares characteristics with the plumage that helps modern birds fly, such as longer barbs on one side of the feather's shaft than the other.

Ecologist Thomas Smith has been gathering the feather samples for more than 2 decades; when other researchers band birds, they pull a tail feather and mail it to Smith.

Tilted, microscopic filaments in some of the showy birds» black feathers make that plumage look much darker than traditional black feathers, researchers report online January 9 in Nature Communications.

His cataloguing of the unusual and sometimes bizarre varieties of pigeon was more than a hobby: he was an avid pigeon breeder, and devoted many pages of On The Origin of Species to documenting how readily the birds change their form when selected for unusual traits such as webbed or feathered feet.

«By sensing gusts and disturbances in air flow through their feathers, birds are able to fly gracefully rather than bouncing around in turbulent air,» he said.

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.

The authors conclude that unless the feather structures of Confuciusornis and Archaeopteryx were greatly different from those of modern birds — for example if their rachis were solid rather than hollow like those of modern birds, a possibility they consider unlikely — then flapping flying must have been a later development.

Looking at nearly 1,000 species of birds, they found that while males often have brighter feathers than females, the two sexes have come closer together in color over time to blend into their surroundings and hide from predators.

The unifying theme, though, is the abundance of feather beta - keratin genes, which make up more than 50 percent of the copies of the several beta - keratin subtypes in all the birds studied.

Moreover, because some bird lice seem to have deeper evolutionary roots than mammal lice do, the team suggests that birds — whose feathers make a good roosting place for lice — became infested first and then passed the pests on to mammals.

But the behaviors of more anxious chickens could do more than ruffle a bunch of feathers: New research suggests that studying the genome of flustered birds could shed light on human mental disorders.

«Tetrick explained how, rather than slaughtering a chicken, scientists could extract stem cells from a bird's fallen feather and grow them into muscle cells.»

There's nothing I love more than to watch the sweet little birds coming back home to our yard for the spring and summer - With my tiny feathered friends in mind, I have three DIY bird... [Read more...]

They say birds of a feather flock together, and who knows you better than your trusted friends?

School is in full swing, and birds of every feather have gathered near a dock to try out their wings, including one latecomer — a penguin who's more than ready to soar.

Never clip too many wing feathers or the bird will drop like a stone, which can cause serous injury, and young birds should have less flight feathers cut than mature birds.

More than one unfortunate bird owner is able to attest to what can happen if your feathered friend decides to go for an earring or other type of piercing.

Irregular Feather Loss If your bird is losing feathers at a time other than its regular molting period, there may be a problem.

, feathers are more than just a means of air travel for birds.

As Robert Clark shows in his new book Feathers: Displays of Brilliant Plumage, feathers are more than just a means of air travel foFeathers: Displays of Brilliant Plumage, feathers are more than just a means of air travel fofeathers are more than just a means of air travel for birds.

Believe me, if you've found birds of a feather, that site will be doing more damage than good as regards solutions because you are still so far from understanding what needs to be done that you still should not be posting at all, you should still be listening and learning.

Birds of a feather;) We are about more than an hour away from an Ikea so going the Target route was easier.

There's nothing I love more than to watch the sweet little birds coming back home to our yard for the spring and summer - With my tiny feathered friends in mind, I have three DIY bird... [Read more...]

I also have a taxidermy bird of paradise that's more than 100 years old and has fabulous feather wings.

I've always wanted to have a «kitchen tree» and I thought what would be more appropriate than a nod to nature with a «birds of a feather» themed tree!