What causes lethargy in birds?
There are many causes of anorexia and lethargy in pet birds including cancer, viral or bacterial infections, fungal or yeast infections, parasites, endocrine or hormonal diseases, and organ-specific problems such as liver, heart, or kidney failure.
What kind of checklist does BirdLife use?
BirdLife uses its taxonomic checklist of birds as the basis for much of its global, regional and national priority-setting work. However, some BirdLife Partners may also use other regional / national checklists and taxonomic sources that are particularly relevant in their context. The BirdLife complete checklist of birds is based on: 1.
Are there any flightless birds that have no wings?
The only known species of flightless bird in which wings completely disappeared was the gigantic, herbivorous moa of New Zealand, hunted to extinction by humans by the 15th century. In moa, the entire pectoral girdle is reduced to a paired scapulocoracoid, which is the size of a finger. List of flightless birds
Why is there no standard World bird list?
This is partly because there is no agreed, standard world list based on the PSC and it may be many years before there will be one, and partly because BirdLife is unpersuaded by some of the underlying concepts and arguments. A relatively conservative approach.
Why are there no flightless birds in New Zealand?
One reason is that until the arrival of humans roughly a thousand years ago, there were no large land predators in New Zealand; the main predators of flightless birds were larger birds.
Are there any bird diseases that are passed on to people?
Even more reassuring is that none of the common diseases of backyard birds are passed on to people directly. For example, West Nile virus—a disease that occurs often in the crow family, including jays and magpies—is carried to people by mosquitoes, not by birds.
Is it normal for a bird to be unable to fly?
Depending on the species, birds may even be unable to fly during part of their molting process, but this is normal. Molting may take several weeks, but it is part of birds renewing their plumage, and they need no special help during this time.
Are there any birds that are naturally bald?
Some birds, such as vultures and condors, are naturally bald, while others, such as many jays, cardinals, and grackles, can be temporarily bald. It can be a drastic look, but it does not indicate severe illness.
