Exposure to teratogens

Inhalational exposure

Inadequate exposure or intake

Esophageal lead

H7N9 Bird Flu Virus

Avian influenza A H7 viruses are a group of influenza viruses that normally circulate among birds. The avian influenza A(H7N9) virus is one subgroup among the larger group of H7 viruses. Although so...

Braniac parrots threatened by widespread lead poisoning

New Zealand's kea* are among the most devastatingly intelligent birds on the planet. For instance, animal cognition researchers say kea are as smart as crows at solving mechanical puzzles . So it com...

Brainiac parrots threatened by widespread lead poisoning

New Zealand's kea* are among the most devastatingly intelligent birds on the planet. For instance, animal cognition researchers say kea are as smart as crows at solving mechanical puzzles . So it com...

Palaeontology: Birds of a different feather

The wings of ancient birds and feathered dinosaurs that lived some 150 million years ago may have been less like those of modern birds than previously thought.Contemporary birds share a common wing de...

City birds adapt to their new predators

(FECYT - Spanish Foundation for Science and Technology) Faced with the same threat, city and country birds do not react in the same way despite being from the same species. According to a new study, u...

Birds of Burden: 7 Ways Humans Harness Avian Abilities [Slide Show]

Many of the 10,000 or so bird species on the planet are pretty, melodic or tasty. But birds are much more than that. Over the centuries, humankind has come up with some distinctive and surprising ways...

Health Tip: Protect Kids From Lead Exposure

-- Ingestion of lead -- notably from older buildings that used lead-based paint -- can cause permanent neurological and developmental problems in children. While lead exposure is dangerous for anyone,...

Angry Birds sweet-talk copycats in booming China market

SHANGHAI, June 26 (Reuters) - When Peter Vesterbacka visited China last spring, the marketing chief for Rovio, the Finnish firm behind the video game Angry Birds, saw fake Angry Birds products everywh...

Without birds, will Guam's forests look like Swiss cheese?

(Rice University) Ecologists from Rice University and the University of Guam will begin an ambitious four-year study this summer to examine how the loss of birds on Guam may be thinning the island's f...

Acute Corticosterone Administration during Meiotic Segregation Stimulates Females to Produce More Male Offspring.

Abstract Birds have demonstrated a remarkable ability to manipulate offspring sex. Previous studies suggest that treatment with hormones can stimulate females to manipulate offspring sex before ovulat...

Combined exposure to cyanobacterial biomass, lead and the Newcastle virus enhances avian toxicity.

Under environmental conditions, wild birds can be exposed to multiple stressors including natural toxins, anthropogenic pollutants and infectious agents at the same time. This experimental study was s...

Embryonic exposure to corticosterone modifies the juvenile stress response, oxidative stress and telomere length.

Early embryonic exposure to maternal glucocorticoids can broadly impact physiology and behaviour across phylogenetically diverse taxa. The transfer of maternal glucocorticoids to offspring may be an i...

Oral Lead Bullet Fragment Exposure in Northern Bobwhite (Colinus virginianus).

Lead (Pb) is a worldwide environmental contaminant known to adversely affect multiple organ systems in both mammalian and avian species. In birds, a common route of exposure is via oral ingestion of l...

Non-breeding feather concentrations of testosterone, corticosterone and cortisol are associated with subsequent survival in wild house sparrows.

Potential mechanistic mediators of Darwinian fitness, such as stress hormones or sex hormones, have been the focus of many studies. An inverse relationship between fitness and stress or sex hormone co...