Fish are usually the most important food source, and the Antarctic silverfish (Pleuragramma antarcticum) makes up the bulk of the bird's diet.
A majority of novel A virus R values were calculated for populations in Southeast Asia (67%), indicative of where the bulk of A/H5N1 bird-to-human transmission occurs.
While Ridgway primarily contributed illustrations to the land bird volumes, he wrote the bulk of the water bird volumes.
Therefore, the bulk of the complex behaviour of birds is instinctive.
The bulk of extant sister species of birds are allopatric or nearly so; those with some overlap are evolutionarily "older," implying that they evolved sufficient ecological differences to allow coexistence in some areas, usually where the ranges meet (Chesser and Zink 1994).
Avian influenza is currently a serious veterinary problem, and the focus of concern should be on Asia where "the bulk of the problem" exists, affecting millions of birds but only a small number of people, Dr. Ryan told reporters by telephone.
While the bulk of the transmission is through birds to mosquitoes to humans, last year the C.D.C. confirmed person-to-person transmission, including 21 through blood transfusions (six of those resulting in deaths), and four transmissions through organ transplants from a single accident victim, and one transmission from a mother to baby via breast milk.
Although the bulk of the dispatched animals were birds -- including 5,729 laughing gulls, 3,203 Eurpoean starlings, and 1,908 mourning doves -- other creatures were also caught in the Port Authority's crosshairs.
The couple live with their three birds Roxy, Blaise, and Rocky and Barbara tells me the bulk of their workload is matching up found birds, or birds that have been spotted by the general public, with their correct owners, as well as dealing with call-outs for lost birds.
Metal engravings of birds.
