8 Dec, 2008
Dogs in rabies
In dogs the first symptom of rabies may be a change in behaviour.The animal may become restless,
somewhat nervous, and excitable. This condition may subside, to reappear within a short time. The dog’s disposition may change; a friendly dog may become irritable and snappy, whereas an ordinarily less amiable animal may become friendly. Later the animal may have a tendency to wander, and may disappear for a day or two, returning exhausted and considerably emaciated. The dog may seek dark corners and hide. At times characteristic change in the bark, or “change in voice,” is noted, which might best be described as a different tone.
Read the rest of this entry »
8 Dec, 2008
rabies
Rabies is an outstanding example of a dangerous disease which could be controlled or eventually eradicated in this country but which is not under control because of failure to impose and thoroughly carry out uniform regulations. Here is an account of the disease and the control measures it demands.
Read the rest of this entry »
7 Dec, 2008
crows squirreling
How crows cache food most members of the crow family that have been studied in detail in the wild have
been seen to hide food. In captivity, many ravens, magpies and jays appear to have a compulsion to hide food. Often the food is carried inside the throat of the bird, so that it is only when the bird is seen to regurgitate or when the food caches are discovered that the extent of food-hiding becomes clear.
Read the rest of this entry »
7 Dec, 2008
ravens
The quick-wittedness and great adaptability of many of the typical black crows (genus
Corves) may partly account for their wide distribution over four continents. At any event, intelligence accounts for the versatility in feeding behavior that has allowed them to survive in such harsh environments as deserts, tundra and cities.
Read the rest of this entry »
7 Dec, 2008
crows
Crows are highly specialized insectivores that eat only some fruit. In the latter, longer billed species, the
bill of the female is larger in most species. This is noteworthy as many birds of paradise appear to suffer from limited resources in no breeding seasons, when the females move lower down the mountains than the males in order to limit intraspecificcompetition.
Read the rest of this entry »
7 Dec, 2008
Birds of paradise
Birds of paradise are so named because of the bizarre appearance of most males, which have fantastic feather and plume structures and wonderful coloration, much of which is iridescent.
Read the rest of this entry »
7 Dec, 2008
bowerbirds
The bowerbird is the supreme artists among birds. Not only do the males
construct elaborate structures decorated with colorful objects - fruits, berries, fungi, tinfoil and bits of plastic—but some even paint them with natural pigments applied with a tool or “paintbrush” held by the bill.
Read the rest of this entry »
7 Dec, 2008
drongos
The drongos are generally solitary, tree-dwelling birds, usually encountered resting on some convenient
tree-perch from which they sally forth to snap up some suitable passing insect. Many of them make spec-tabular swoops, curves and twists in pursuit of their prey.
Read the rest of this entry »
7 Dec, 2008
orioles
The name oriole appears to have been derived from the Latin aureoles, meaning golden or yellow. Most of
the orioles are yell-low and black, although some are crimson and black. They are not closely related to the New World orioles or American blackbirds, which are an entirely different family.
All orioles are remarkably similar in shape and size. The figs birds are less brighten plumage than the orioles, and are more heavily built and more sluggish. In the orioles the bill is slightly deserved, while the fig-birds have short, stout bills, hooked at the tip. All the species occur in woodland or forest, where they are restricted to feeding entrees, although both the Golden oriole and the Eastern blockheaded oriole will feed on the ground on fallen fruits or insects in the grass layer. Fig birds commonly occur in small parties or flocks, even in mixed flocks with other oriole species, but most of the orioles are solitary, or found in pairs or family parties. The African orioles, African golden, Eastern black-headed and Green-headed orioles occasionally join mixed-species foraging flocks, and, when they dose, move slowly through the forest or wood-land with the other birds. When foraging alone, orioles often fly long distances, as much as 1-2km. From fruiting tree to tree or other food sources. The rather flapping flight in all orioles is heavy, fairly’cwift and undulating, rather similar to the flight of woodpeckers.
Read the rest of this entry »
7 Dec, 2008
starlings
Throughout history, one of the greatest scourges of man’s crops has been the locust and the delectation for this pest of several species of starling, such as the Rose-colored starling. The Common mynah and the Wattle starling brought them to man’s attention many centuries ago. Other species are better known as pests.
Read the rest of this entry »