Avicultural Society of America

Living the Scientific Life (Scientist, Interrupted)

Category archives for Avicultural Society of America

tags: evolution, evolutionary biology, gynandromorph, bilateral gynandromorph bird, half-sider, mixed-sex chimaera, sex determination, molecular biology, genetics, developmental biology, endocrinology, birds, chicken, Gallus gallus, ornithology, researchblogging.org,peer-reviewed research, peer-reviewed paper, journal club Half-sider. Almost exactly one year ago, hundreds of American birders were thrilled by sightings and photographs of this remarkable Northern Cardinal, or Redbird, Cardinalis cardinalis,…

tags: evolutionary biology, immunology, immune response, antibodies, parasite, avian pox virus, Poxvirus avium, nest fly, Philornis downsi, birds, ornithology, Darwin’s Finches, Medium Ground Finch, Geospiza fortis, Ecuador, Galapagos Islands, researchblogging.org,peer-reviewed research, peer-reviewed paper A male Medium Ground Finch, Geospiza fortis, sits on a tree branch in Ecuador’s Galapagos Islands. Image: Jen Koop. People often view…

tags: lories, Loriinae, Loriidae, ornithology, molecular biology, natural history museums A young pair of Meyer’s Lories (Lorikeets), Trichoglossus flavoviridis meyeri. Image: Iggino [larger view]. “Can you help us identify a mystery lory in our collection?” I was pleasantly surprised to find this email request from Donna Dittmann, Collections Manager and Museum Preparator for the Section…

tags: evolutionary biology, mate choice, sex determination, genetic compatibility, behavioral ecology, Gouldian Finch, Erythrura gouldiae, peer-reviewed paper The three color morphs of Gouldian finches, Erythrura gouldiae. Image: Sarah Pryke, Macquarie University. Gouldian finches, Erythrura gouldiae, are small cavity-nesting passerines that are endemic to open savannahs adjacent to mangrove swamps in northern Australia. These finches eat…

tags: researchblogging.org, evolution, speciation, ring species, phylogeography, landscape genetics, crimson rosella, Platycercus elegans, parrots, birds, Australia Crimson Rosella, Platycercus elegans. Image: Australian Broadcasting Corporation. 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…

tags: researchblogging.org, dichromatism, mating system, plumage color, sex allocation, eclectus parrots, Eclectus roratus, ornithology, birds, avian, parrots Elektra, my female Solomon Islands eclectus parrot, Eclectus roratus solomonensis. This is the smallest and most distinctively marked of all the subspecies of eclectus parrots. Image: GrrlScientist 4 July 2008 [larger view]. Some of you might recall the…

tags: researchblogging.org, evolutionary behavior, sociobiology, ornithology, birds, avian, evolution, William Dilger, Agapornis roseicollis, Agapornis fischeri, lovebirds Peach-faced lovebirds, Agapornis roseicollis (left) and Fischer’s lovebirds, Agapornis fischeri (right), can interbreed to produce sterile offspring. Images: LoveBirds New Zealand. Is behavior genetically “programmed” or is it the result of learning? Or is it instead a little bit…

Why Grandmothers?

tags: 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…

tags: researchblogging.org, birds, ornithology, evolution, radiation, Chernobyl Normal Barn Swallow (a), while the other pictures show signs of albinism (white feathers; b & c), unusually colored feathers (d), deformed beaks (e & f), deformed air sacs (g), and bent tail feathers (h & i). Images: Tim Mousseau. Twenty years after the Chernobyl reactor disaster, which…

tags: recurve-billed bushbird, Clytoctantes alixii, ornithology, birds, avian, endangered species This male Recurve-billed Bushbird, Clytoctantes alixii, was recently photographed by ProAves staff, Adriana Tovar and Luis Eduardo Uruena. This is the first time this globally endangered species has been captured on film. [larger]. [listen to this species’ song] For the first time ever, an elusive…