Among Wrens, Moms Teach Daughters To Call, Dads Teach Sons, Study Reveals
...alls from the opposite sex'srepertoire or from any bird but their same-sex parent, he said. A report on thefindings appears in the March 22 issue of the Proceedings of the Royal Societyof London. Stripe-backed wrens are termed "cooperative breeders" because they livein family social groups on comm...Birds Sing The 'Story Of Their Lives,' Theorize Duke Biologists
... develop during a particular period when the young bird is most likelyto undergo stress." Such stress, Now...weredquestion until now: how exactly does a female bird benefit from choosing a matebased on his song. Early theories had held that the elaborate male bird ...Does Mountain Living Slow Rate Of Molecular Evolution?
... more extensive subdivision and speciation of bird populations living at high elevations" predicts the opposite of what was found. Bleiweiss compared the DNA of hummingbirds living at a v...Pollution, Food Stress Take Toll On Bald Eagles
...uture research on pollution in eagles or any other bird of prey. "People love bald eagles," says Gill, who still stops to watch wheneverhe sees one. "It's like killer whales; we don't want to see anything happen tothem because of something we've done to the environment that we have the powerto fi...International Research Team Announces Discovery Of Two Species Of Feathered Dinosaurs
... Archaeopteryx - long considered theearliest known bird - and modern birds, whose wing-feathers are asymme...er that was a precursor to the flapping movement a bird uses in flightthat seems to represent a critical step towards powered flight. Discoveries made in th...USGS And Arizona Game And Fish Begin Partnership To Study Western Yellow-Billed Cuckoo
A secretive bird called the western yellow-billed cuckoo is the foc...oup of birds calledneotropical migrants, said USGS bird biologist Mark Sogge. These birdswinter in Central and South America, spending the rest of the year ...Grassland Birds Are Not Nesting In Non-Native Grasses
BLACKSBURG, Va. -- Populations of many grassland bird species havedeclined significantly in the last 30 years, according to breeding bird surveys.One cause may be farmers' increased use of exotic cool-season grasses, reportVirginia Tech f...Cardinals Can Recognize Gender By Song, Columbia University Biologist Finds
...se humans have provided food that allows the hardy bird to survivethe winter. The male is bright red, the...w, their songs might provide the cue that alerts a bird to the presence ofanother bird. She hid speakers in the brush at a field site in Arizona, an...Birds Of A Feather: The Physics Of Flocks
...f they possess a single mind.What's more amazing, bird flocks often move harmoniously without any sort of...n they are traveling over short distances.Studying bird flocks may seem to be the exclusive domain of ornithologists. Butphysicists too have become captiva...University Of Chicago Researcher Receives Packard Fellowship
... East China Seaand was reincarnated as a beautiful bird that flew about dropping stones andwood in an effort to fill the sea to prevent others from drowning. "We used thename jingwei," Long says, "because this gene avoided the usual fate of theprocessed gene (death) and was "reincarnated" into a new stru...Ohio State Professor Receives Patent For Infectious Bursal Disease Virus Detection Kit
...ted from the bursa – a sac located inside the bird at the base of the tail. The virus can be found in cells of bursa tissue. The first of its kind, this test tells farmers which strain, or strains, of IBDV their flock has been exposed to. “The farmer will then know what strain is c...History Of The Rainforest Told In Song
... ignored it -as if it had been the song of another bird species." The picture that is emerging from Dr. We...pelago of islands consisting ofculturally-distinct bird communities, much like human communities speakingdifferent linguistic dialects. "This suggests that ...Greater Prairie Chicken Appears On Comeback Trail In Illinois
...that we owe somethingto the prairie chicken. This bird probably numbered in the millions in the1800s. It fed the early settlers. The species epitomizes the characteristicsof the state. Besides, efforts to preserve prairie chickens benefit a widearray of other endangered, threatened and watch-list spec...Salmonella Vaccine Now Available For Poultry
...la control,very low cost at less than one cent per bird and is easily applied usingtraditional techniques now used by US broiler chicken production companies."according to Sandra Kelly, MS, Biologicals Development Manager for Megan. Megan Health, Inc. is a privately held vaccine discovery company establis...Study Associates Asteroid Or Comet Impact With Extinctions In Argentina
...nt types of ancient mammals and a flightless bird 3.3 million years ago. Theimpact may have directly caused the regional extinctions or triggered a climatechange that led to the disappearance of the animals in what is now southeasternArgentina. The findings may provide an opportun...Elementary Students Mapping Virginia Wildlife
... VirginiaTech's Museum of Natural History provided bird specimens to help the childrenlearn to identify di...ES teacher Cathy Ney). CES is now planning its own bird sanctuary on the school's ground. The VirginiaTech chapter of the American Society of Landscape Arc...At Night, Birds May Review The Songs They Learn During The Day
...atterns generated in regions of the brain when the bird is singing its ownsong. If the patterns match, it would provide strong evidence that the bird'sbrain is "replaying" its song subconsciously as it sleeps....Bird Dads Suffer Infidelity But Bring Up Baby
Seduced and abandoned Single-parent bird dads suffer female infidelity, then get the job of... Jacanas copulate at a high ratecompared with most bird species. While a single copulation would provide enoughsperm to fertilize a clutch of four eggs, th...Fossil Eggshells Hold Clues To Major Animal Extinctions As Reported In Science
...s have usedthe eggshells of an enormous flightless bird to show that humans were probablyresponsible for a...ion of Genyornis newtoni , a ponderous flightless bird with thick, shortlegs that weighed around 200 pounds--twice as much as the modern day emu. Theyused ......to control canker worms. Instead, thehardy little bird became a pest by eating crops, displacing some native birdsand harassing others, and carrying 29 diseases that affect humans and domesticanimals. And canker worms still bedevil gardeners. "It's too late to send these organisms back," Pimentel said, ...