Tag: "songbirds" at biology news
One gene links newborn neurons with those that die in diseases such as Alzheimer's
...ed the study of the brain pathways controlling how songbirds
learn to sing. A discrete region of the brains of songbirds, known as the high vocal center, controls their singing behavior. It was in this brain region that, more than 20 years ago, Nottebohm discovered new neurons being born in adult birds, overtu...
Migratory songbirds have a specialized night-vision brain area
...esearchers compared two species of night-migratory songbirds
-- garden warblers and European robins -- with two non-migratory songbirds
-- zebra finches and canaries. Using a transparent cylindrical cage in Mouritsen's laboratory, they...
'Uniquely human' component of language found in gregarious birds
... show that these starlings ?long known as virtuoso songbirds
and expert mimics ?can be trained to reliably discriminate between two different patterns of organizing the sounds they use to communicate. "Our research is a refutation of the canonical position that what makes human language unique is a singular ...
Zebra finches remember songs dad sang
...lieve they have located a place in the brain where songbirds
store the memories of their parents' songs. The di...ry has implications for humans, because humans and songbirds
are among the few animals that learn to vocalize by imitating their caregivers. In a paper publishe...
Males with elevated levels of testosterone lead shorter lives but have more success siring offspring
...llowed a group of dark-eyed juncos, small mountain songbirds
found throughout North America. They injected males with elevated levels of testosterone and found that they had shorter lives but that they were very successful at siring more offspring ? even with females who were mated with other males. "The surp...
Light guides flight of migratory birds
...light. Muheim and Phillips argue that migratory songbirds
average the sunrise and sunset intersections of th...search suggested that before the migration period, songbirds
are able to recalibrate the magnetic compass when exposed to a "conflict" between magnetic and celes...
Dragonfly migration resembles that of birds, scientists say
...ists have discovered that migrating dragonfliesand songbirds
exhibit many of the same behaviors, suggesting the rulesthat govern such long-distance travel may be simpler and more ancientthan was once thought. The research, published in the May 11 Biology Letters, is based on datagenerated by tracking 14 green...
Female birds boost up their eggs when hearing sexy song
...est issue of Ethology researchers show that female songbirds
can alter the size of eggs and possibly the sex of their chicks according to how they perceive their mate's quality. The researchers played back attractive ("sexy") songs and less attractive control songs of male canaries to female domesticated can...
Cities change the songs of birds
...onmental pressures that influence where particular songbirds
thrive, and the specific attributes of city birds that allow them to adjust to noisy urban environments. The findings, reported by Hans Slabbekoorn and Ardie den Boer-Visser of Leiden University, appear in the December 5th issue of Current Biology. ...
Bats prey on nocturnally migrating songbirds
...presented by the billions of high-flying, Eurasian songbirds
which engage twice a year into long-distance, nort... world. Are some of them similarly stalking unwary songbirds
during their massive nocturnal passes? The foraging habits of these rare bats still remain quite mys...
Eavesdropping comes naturally to young song sparrows
...logy professor. Scientists study song learning in songbirds
in part because it has a number of parallels with human language learning, and Beecher thinks eavesdropping also could play a role in how infants learn language. Sparrows in the wild are thought to learn their songs in two phases. The first phase...