ornithology
grrlscientist | October 15, 2007tags: Birds in the News, BirdNews, ornithology, birds, avian, newsletter
Male SincoraÌ Antwren,Formicivora grantsaui.
Potentially a new bird species that was recently discovered in Brazil.
Image: Sidnei Sampaio. [larger view].
Birds in Science
When male birds know they're about to get it on, that action is more likely to spawn a bigger brood of eggs compared to spontaneous copulation, a new study finds. Previous studies have shown that when two male birds mate with a female in a competition to pass on their genetic material, they end in a draw and both become fathers to an equal number of…
grrlscientist | October 14, 2007tags: Spoonbill Sandpiper, Eurynorhynchus pygmeus, birds, ornithology, endangered species, Image of the Day
Spoonbill Sandpiper chick, Eurynorhynchus pygmeus.
(Read a story about this species in tomorrow's edition of Birds in the News -- issue 101).
Image: J. O'Sullivan [Wallpaper size]
Thanks, Grace!
tetrapodzoology | October 10, 2007
By naughtily avoiding the long list of things that I'm supposed to be doing in my 'spare' time I've finally done it: adapted my monumental, keynote cryptozoology conference speech into an article(s) for publication here at Tet Zoo. Ok, so it wasn't so 'monumental' or 'keynote', but I thought I might as well recycle it anyway (for more on the conference in question see the article here). The general message here might, by now, be familiar to Tet Zoo regulars, as I've been promoting the same view for a while now...
The talk included several hundred words on the discoveries made by Marc van…
grrlscientist | October 10, 2007tags: researchblogging.org, birds, SincoraÌ Antwren, Formicivora grantsaui, ornithology, Brazil
Male SincoraÌ Antwren,Formicivora grantsaui.
Potentially a new bird species that was recently discovered in Brazil.
Image: Sidnei Sampaio. [larger view].
In a world where many humans believe they know the identities of every living thing on the planet, it is truly refreshing to learn that we have found yet another species of bird that is new to science. This new species was recently found in eastern Brazil. The bird was captured, studied and its vocalizations were recorded by ornithologists.…
grrlscientist | October 9, 2007tags: researchblogging.org, conservation, birds, ornithology, ecology, environment, endangered species
Image: Robert Linder.
I suppose this seems obvious to you city dwellers, but recently published research demonstrates that urban birds are better overall survivors than their country-dwelling cousins. Apparently, this is because city-dwelling birds are less specialized in their requirements, and thus, are more broadly adaptable to a variety of microenvironments, such as those found in large cities. While this might seem to be a mere conversational topic to many of you, this observation is…
grrlscientist | October 8, 2007tags: Birds in the News, BirdNews, ornithology, birds, avian, newsletter
Can anyone out there identify these mysterious birds? I have no information about the birds, such as location, but several experts are already proposing their guesses (one thinks it's a Chough, another one disagrees). Several ornithologists think these birds are captives rather than wild birds. [larger view].
Birds in Science
Urban birds are regular tough guys compared to their country cousins. The avian urbanites adapt to changing environments and noisy, crowded habitats, a new study shows. Birds that hang out on…
tetrapodzoology | October 5, 2007
Time permitting... coming next: that cryptozoology stuff. If I say any more I'll spoil the surprise (there are a few technical errors in the map shown here - it's not meant to be totally accurate. It depicts various extant and recently-extinct Caribbean tetrapods. Well done to anyone who can name all the taxa).
grrlscientist | October 4, 2007tags: Red-breasted nuthatch, Sitta canadensis, birds, Image of the Day
Yesterday's mystery bird is revealed: Red-breasted nuthatch, Sitta canadensis.
Image: David Lee. [Wallpaper size]
grrlscientist | October 3, 2007tags: Red-breasted nuthatch, Sitta canadensis, birds, Image of the Day
The photographer writes: I took some pictures this weekend at my bird feeder (in Eagle River, AK). [More of these images will follow, so be sure to check in here]
Image: David Lee. [Wallpaper size]
mystery bird, revealed.
grrlscientist | October 3, 2007tags: researchblogging.org, H-index, impact numbers, scientific journals
A friend, Ian, emailed an opinion paper that lamented the state of scientific research and the effect this has had on science itself. In this paper, by Peter A. Lawrence, a Professor of Zoology at University of Cambridge, the main point is that modern science, particularly biomedicine, is being damaged by attempts to measure the quality and quantity of research being produced by individual scientists. Worse, as this system careened out of control, it gave rise to a new and more damaging trend: ranking scientists…
grrlscientist | October 1, 2007tags: Birds in the News, BirdNews, ornithology, birds, avian, newsletter
Back from the brink:
The endangered Rimatara lorikeet or Kuhl's lory, Vini kuhlii,
has been successfully reintroduced to Ätiu.
Image: Phil Bender.
Birds in Science
Migrating birds, it seems, can "see" the Earth's magnetic field which they use as a compass to guide them around the globe. Specialized neurons in the eye, sensitive to magnetic direction, have been shown for the first time to connect via a specific brain pathway to an area in the forebrain of birds responsible for vision, German researchers said on…
tetrapodzoology | September 30, 2007
How did the centenary workshop on mammal bone identification go, I hear you cry? It went very well, thank you very much. Anyway, as promised here are more of various recollections from the 55th SVPCA, held at the University of Glasgow between August 29th and September 1st. For previous of my thoughts visit part I here, and for abstracts, photo galleries and more, visit the SVPCA site here. In this article, I'm going to review the dinosaur talks. You have been warned.
[I should explain the photo montage used here. For reasons that might have been mysterious to him, Bob Nicholls (of…
grrlscientist | September 27, 2007tags: parrot, lories, lorikeet, loriinae, loriidae, Rimatara lorikeet, Kuhl's lory, Vini kuhlii, conservation, ornithology, South Pacific Islands
Back from the brink:
The endangered Rimatara lorikeet or Kuhl's lory, Vini kuhlii,
has been successfully reintroduced to Ätiu.
Image: Phil Bender.
As I've mentioned a few times already, my life's passion is the birds of the South Pacific, particularly the Loriinae, which are parrots commonly known as the lories and lorikeets. I study them professionally and I have lived with them and bred them for most of my life. So it was exciting to me when I…
grrlscientist | September 27, 2007tags: researchblogging.org, Seychelles warbler, Acrocephalus sechellensis, birds, evolution, social behavior, helping behavior, grandmothers
Seychelles warbler, Acrocephalus sechellensis.
Image: J. Komdeur.
When talking about evolution, some people have wondered aloud about why grandmothers exist in human society since they clearly are no longer able to reproduce. However, these people are conveniently overlooking the fact that grandmothers perform a valuable service; they help their relatives, often their own children, raise their offspring -- offspring that are genetically related to…
grrlscientist | September 24, 2007tags: researchblogging.org, velociraptor, Dromaeosauridae, dinosaur, feathers, paleontology, evolution
Velociraptor skull.
Velociraptors were small dinosaurs, weighing only about 15kg and approximnately 1.5m long.
Image: M. Elison, AMNH. [larger view]
According to a research paper that was published late last week, the Velociraptor probably had feathers. A closer look at a fossil Velociraptor ulna (forearm) that was found in Mongolia in 1998 revealed a series of small bumps along its length. These bumps are known as "quill knobs" because they are found in most modern birds where they…
grrlscientist | September 18, 2007tags: birds, Moluccan Red Lories, Eos bornea rothschildi, Green-naped Rainbow Lorikeets, Trichoglossus haematodus haematodus, Seram, Indonesia, Image of the Day
A pair of Moluccan Red Lories, Eos bornea rothschildi (upper, center and right), and a pair of Rainbow Lorikeet, Trichoglossus haematodus haematodus (lower, center (that bird is hanging upside down) and left), near the north coast of Seram, Indonesia.
Image: Kevin Sharp [wallpaper size].
More about this image below the fold.
As you know, dear readers, I am passionately in love with the birds of the South Pacific Ocean, especially…
grrlscientist | September 12, 2007tags: birds, "white" American Robin, Turdus migratorius, Image of the Day
"White" American Robin, Turdus migratorius, on a sidewalk in Casper, Wyoming.
Image: Norma Brown. [wallpaper size].
I am going to speculate here, but I think that, because this bird is pale colored everywhere it would normally be brown, grey or black, this bird's melanin-producing gene(s) have been deactivated. However, because the bird's breast is red, as is typical for this species, carotenoids (red pigments obtained from the bird's diet) are still being added to the bird's feathers when they are growing, as normal…
grrlscientist | September 10, 2007tags: Birds in the News, BirdNews, ornithology, birds, avian, newsletter
Clark's Grebe, Aechmorphus clarkii, in the foreground with a Western Grebe, Aechmorphus occidentalis, behind. Both were photographed on the Bear River Migratory Bird Refuge (north end of the Great Salt Lake) in the spring of 2005. Similar birds, but the field marks are straw-yellow bill (Clark's) cf. greenish-yellow bill (Western); white feathering around the eye (Clark's) cf black (Western), and whiter flanks on the Clark's Grebe. This pair of birds was hanging out together, and that was not unusual, making one wonder…
grrlscientist | September 8, 2007tags: Alex, African grey parrot, Psittacus erithacus, cognition, learning, speech disabilities, Irene Pepperberg
Alex, the African grey parrot, Psittacus erithacus and his colored blocks.
Image: EurekaAlert. [wallpaper size]
As you know, I have spent my life researching, breeding and living with birds, especially parrots. I have also had the distinct pleasure of meeting Irene Pepperberg several times, both at professional meetings as well as at avicultural meetings. However, yesterday, I received the devastating news that Alex the African grey parrot, who was both a study subject and…
grrlscientist | September 7, 2007The 57th edition of I and the Bird blog carnival is now available for you to enjoy. Be sure to drop in and give them support by following their links.