Birds in the News
grrlscientist | September 15, 2008tags: Birds in the News, BirdNews, ornithology, birds, avian, newsletter
ABSTRACT: Rainbow Lory, Trichoglossus haematodus.
Image: John Del Rio. [larger view].
Birds in Science
UK Scientists have found bird fossils dating back around 55 million years that could help shed light on a period of time before humans and most mammals had evolved. The fossils, including two complete bird skulls, a pelvis and several bones, appear to be the remains of parrot-like birds and were found by a local archaeologist on marshland Seasalter Levels near Whitstable, Kent. "Birds' skeletons are so fragile, the…
grrlscientist | August 18, 2008tags: Birds in the News, BirdNews, ornithology, birds, avian, newsletter
Orange phase Dusky Lory, Pseudeos fuscata.
Image: John Del Rio. [larger view].
Birds in Science News
Ever since Darwin, evolutionary biologists have wondered why some lineages have diversified more than others. Over 20 years ago, Jeff Wyles, Allan Wilson, and Joseph Kunkel proposed that big brains might favor adaptive evolutionary diversification in animals by facilitating the behavioral changes needed to use new resources or environments, a theory known as the behavioral drive hypothesis. When these authors…
grrlscientist | August 11, 2008tags: Birds in the News, BirdNews, ornithology, birds, avian, newsletter
ABSTRACT: Chattering Lory, sometimes known as the Scarlet Lory, Lorius garrulus.
Image: John Del Rio [larger view].
Birds in Science News
The Horsfield's bronze-cuckoo, Chalcites basalis, specializes in laying a single egg in the nests of fairy-wrens, but sometimes parasitizes nests of other species such as thornbills or robins. The cuckoo chick has a shorter incubation period than the hosts' chicks, and after the cuckoo chick hatches, it pushes the host's eggs out of the nest and imitates the begging calls of the…
grrlscientist | August 4, 2008tags: Birds in the News, BirdNews, ornithology, birds, avian, newsletter
Brown Lory, also known as the Duyvenbode's Lory, Chalcopsitta duivenbodei. This species is endemic to the island of New Guinea.
Image: John Del Rio [larger view].
Birds in Science News
One of the challenges facing those who believe that evolution cannot create new species is explaining the problem of "ring species." Ring species are a group of geographically connected populations that can interbreed with nearby populations, but cannot breed with those populations that exist at each end of the cline. These populations…
grrlscientist | July 28, 2008tags: Birds in the News, BirdNews, ornithology, birds, avian, newsletter
A Marsh Wren, Cistothorus palustris, gathers cattail material
for its nest along the shore of Lost Lake in North Central Washington
just 10 miles south of the Canadian Border.
Image: Jeff Larsen, Writer/Photographer [larger view].
View more images by this photographer.
Birds in Science News
Now here's a fascinating research paper that I've been trying to get my hands on: The chicks of a species of Australian cuckoo can adjust their call in order to fool other species into rearing them, despite never having heard…
grrlscientist | July 21, 2008tags: Birds in the News, BirdNews, ornithology, birds, avian, newsletter
Female black-chinned Hummingbird, Archilochus alexandri, Cave Creek Canyon, AZ.
Image: Dave Rintoul, June 2008 [larger view].
More images from Dave's recent Arizona vacation.
Birds in Science News
The fossil record suggests that much of the biodiversity we see arose quickly in response to ecological opportunities: abundant resources combined with few, or no, potential competitors. As the niche became more crowded, the rate of speciation decreased. This process is known as density-dependent diversification. But can…
grrlscientist | July 14, 2008tags: Birds in the News, BirdNews, ornithology, birds, avian, newsletter
Juvenile male Blue-throated Hummingbird, Lampornis clemenciae, Cave Creek Canyon, AZ.
Image: Dave Rintoul, June 2008 [larger view].
For comparison, an adult male of the species -- also read the comments section to learn more about how to identify juvenile males of this species.
Birds in Science News
A new analysis indicates that birds don't fly alone when migrating at night. Some birds, at least, keep together on their migratory journeys, flying in tandem even when they are 200 meters or more apart. The study, from…
grrlscientist | July 7, 2008tags: Birds in the News, BirdNews, ornithology, birds, avian, newsletter
Canyon Towhee, Pipilo fuscus, in Chaco Canyon.
Image: Dave Rintoul, June 2008 [larger view].
News of Birds in Science
According to an article that was just published in the journal BioScience, penguin populations are declining sharply due to the combined effects of overfishing and pollution from offshore oil operations and shipping. Dee Boersma, professor of biology and the Wadsworth Endowed Chair in Conservation Science at the University of Washington in Seattle, reports that Patagonian (magellanic) penguins,…
grrlscientist | June 30, 2008tags: Birds in the News, BirdNews, ornithology, birds, avian, newsletter
Ruby-crowned Kinglet, Regulus calendula, with insect egg or pupa in its beak.
Image: Dave Rintoul, KSU [larger view].
News of Birds in Science
A fascinating paper was just published by some of my colleagues in the top-tier journal, Science, that analyzes the largest collection of DNA data ever assembled for birds. This analysis effectively redraws avian phylogeny, or family tree, thus shaking up our current understanding of the early, or "deep", evolutionary relationships of birds. For example, one of the most…
grrlscientist | June 23, 2008tags: Birds in the News, BirdNews, ornithology, birds, avian, newsletter
Yellow-rumped warbler, Dendroica coronata, After Hatch Year male.
Image: Dave Rintoul, KSU [larger view].
People Hurting Birds
The National Council of SPCAs (NSPCA) in South Africa said it was out of options trying to prevent a bird hunt organised by the High School Hans Strijdom in Mookgophong (Naboomspruit). The school apparently organised a bird hunt to take place over the weekend to raise funds, but the NSPCA condemned it as unethical. "The linking of a school with flagrant slaughter, turning killing into sport…
grrlscientist | June 16, 2008tags: Birds in the News, BirdNews, ornithology, birds, avian, newsletter
"Blue enough for ya?"
Male Eastern Bluebird, Sialia sialis.
Image: Dave Rintoul, KSU [larger view].
Birds and Dads News
I stop for pileated woodpeckers. That'd be my life's bumper sticker. These days, I know my birds. Not because I ever saw them as a kid, but because on the way home from hikes with my dad, I'd grab his Golden field guide, Birds of North America, and read up on what we just spent the whole day not seeing. Pileated, by the way, means capped, a reference to its distinctive triangular red crest. Woody…
grrlscientist | June 9, 2008tags: Birds in the News, BirdNews, ornithology, birds, avian, newsletter
Male prothonotary warbler, Protonotaria citrea in breeding plumage.
Image: Dave Rintoul, KSU [OMG view].
Birds in Science
New research led by Dr Melanie Massaro and Dr Jim Briskie at the University of Canterbury, which found that the New Zealand bellbird is capable of changing its nesting behaviour to protect itself from predators, could be good news for island birds around the world at risk of extinction. The introduction of predatory mammals such as rats, cats and stoats to oceanic islands has led to the extinction…
grrlscientist | June 2, 2008tags: Birds in the News, BirdNews, ornithology, birds, avian, newsletter
"Not skulking"
Lincoln's Sparrow, Melospiza lincolnii.
Image: Dave Rintoul, KSU [larger view].
People Hurting Birds
The number of lesser scaup is dwindling, and it could be an invasive species that does them in. Invasive snails and parasites are attacking these and other ducks on the Upper Mississippi. U.S. Fish and Wildlife Service officials say with no natural predators, the snails and the parasites are thriving, and killing off a duck population that is already in trouble. The snail has helped kill nearly 50,000…
grrlscientist | May 26, 2008tags: Birds in the News, BirdNews, ornithology, birds, avian, newsletter
Red-crested Turaco, Tauraco erythrolophus.
Image: John Del Rio [larger view].
Birds in Science
Surface tension can be a wonderful thing. It helps some insects walk on water. It allows the dappling of raindrops on the hood of a car. And, a new study in Science shows, it enables certain birds to eat. Like many birds, phalaropes, small shorebirds with long, thin beaks, feed by pecking, but phalaropes peck at water, capturing droplets, on the order of a tenth of an inch in diameter, which can contain tiny crustaceans or…
grrlscientist | May 19, 2008tags: Birds in the News, BirdNews, ornithology, birds, avian, newsletter
Yellow-Throated Laughing Thrush, Garrulax galbanus.
Image: John Del Rio. [larger view].
Birds in Science News
A team of researchers recently described fossils from two Lower Eocene parrots that were discovered in Denmark. Analysis of the fossils reveals that one of the ancient parrots, named Mopsitta tanta, is the largest fossil parrot found so far and it has the most northerly distribution yet known. Further, it resembles modern parrots almost as closely as younger fossils found from the Miocene, making it the…
grrlscientist | May 12, 2008tags: Birds in the News, BirdNews, ornithology, birds, avian, newsletter
Common Pochard, Aythya ferina (Hiroshima, Japan).
Image: Bardiac [larger].
Birds in Science News
Climate change threatens many animals -- but with any luck, some will handle weather shifts with as much aplomb as Parus major, a colorful songbird also known as the great tit. In a study published today in Science, ornithologists from the University of Oxford tracked the egg-laying times of great tits in Wytham, England. Since the mid-1970s, temperatures in Wytham have risen steadily, hastening the start of spring by two…
grrlscientist | May 5, 2008tags: Birds in the News, BirdNews, ornithology, birds, avian, newsletter
Male mountain bluebird, Sialia currucoides.
This bird surprised birders in Washington state by visiting Bainbridge Island this past April.
Image: Eva Gerdts, April 2008 [larger view].
Birds in Science
A team of scientists believe they can provide the key to an enduring wildlife mystery: how do birds navigate? Two main theories joust to explain the seemingly miraculous avian compass. One, supported by research among homing pigeons four years ago, is that birds have tiny particles, called magnetite, in their upper…
grrlscientist | April 28, 2008tags: Birds in the News, BirdNews, ornithology, birds, avian, newsletter
"Abstract"
Male Wood Duck, Aix sponsa.
Image: John Del Rio. [larger view].
Birds in Science
It wasn't too long ago that paleontologists thought that fossilization was a process where all biological material was replaced with inert stone. However, in 2005, Mary Higby Schweitzer of North Carolina State University rocked the paleontological world when she recovered a still-elastic blood vessel from inside a fractured thigh bone fossil of a Tyrannosaurus rex that lived 68 million years ago. Recent phylogenetic analyses of…
grrlscientist | April 21, 2008tags: Birds in the News, BirdNews, ornithology, birds, avian, newsletter
American White Pelican, Pelecanus erythrorhynchos.
Image: Jerry Kram. [larger size].
People Hurting Birds
Jerrould Smith, a dumbass good ol' boy from Sarasota Florida, is charged with animal cruelty after deputies say he deliberately swerved off the road to run over a protected bird species. Smith admitted he hit a sandhill crane and told deputies it was a "spur of the moment" decision and knew the bird was a protected species. The bird died.
New research debunks the common belief that cats and raccoons are to blame…
grrlscientist | April 14, 2008tags: Birds in the News, BirdNews, ornithology, birds, avian, newsletter
"Thy Fearful Symmetry"
Male greater Prairie-chicken, Tympanuchus cupido.
Image: Dave Rintoul, KSU. [larger view].
More of Dave's Greater Prairie-chicken images.
Birds in Science
Seven feathers that either belonged to a non-avian dinosaur or an early bird have been discovered encased in amber in a remarkably vivid state of preservation, according to a recent Proceedings of the Royal Society B study. The 100-million-year-old amber, excavated from a Charente-Maritime quarry in western France, was found near the…