Pigeons are very hardy, and are subject to very few diseases. The two eggs laid by the female pigeon generally produce a male and female bird; and, when this is the case, if by any chance one of them is killed, it is very difficult to provide the other with a mate. Pigeons are proverbial for their constancy, and the same pair will produce broods for several years in succession.
The _diseases of poultry_ are very numerous and often fatal. The _pip_ comes in the shape of a little blister on the tip of the tongue, which afterwards becomes a thickened membrane. If seen in its first state it should be pricked, and the fowl kept a day or two without food, but plenty of water should be given to it. If the membrane has formed, the fowl is thrown on its back, and, the beak being opened, the membrane is removed by passing the finger nail or a fine needle under it. The tongue is then moistened with a little oil, and the fowl for a few days is given very little to eat, but plenty of water to drink: some persons give fowls affected with this disease rue chopped fine and mixed with butter. It is a very common disease with young fowls, and generally attacks them, if the weather should be hot, in August and September. When fowls appear to suffer from immoderate thirst, it is a sign of _fever_, and they should be supplied with abundance of clear water, and only fed with a little soaked bread; and a similar mode of treatment is generally efficacious when the fowl appears to suffer from constipation. When a fowl is _crop-sick_, that is, suffers from indigestion, it is usual to put a piece of iron in some of the water given to it, but it should also have plenty of pure water. Pepper is often given, and no other food is allowed than mashed potatoes or boiled cabbage cut small, and both given warm. When fowls have a voracious appetite, and yet look out of condition, it probably arises from the fowl having too much acid on its stomach, and it should be fed with mashed potatoes mixed with chalk and given warm. In _diarrhœa_ boiled rice is given, occasionally mixed with milk, taking care, however, that the milk is perfectly sweet; or chalk may be given, and the fowl fed on wheat, oats, or buck-wheat. The _roup_, or influenza, is, however, the most fatal of all the diseases which attack poultry. It begins with what is called the gapes; that is, the fowl, being unable to breathe through its nostrils, keeps its beak open, with a kind of convulsive yawn; the eyelids then become swelled and close, and there is an offensive discharge from the nostrils. As soon as any fowl is observed to be affected with this disease, it should be separated from the rest, as the disease is very infectious. The mouth and nostrils should be first washed with warm water and soap (which will make the creature sneeze and discharge a great quantity of the offensive matter), and then gently rubbed with a dry cloth. A grain of calomel made into a pill with bread may be given, and the fowl put into a rabbit-hutch near the fire, on a bed of soft warm hay. Some hours afterwards the head should be again washed in warm water and rubbed dry, and the fowl should be crammed with a few balls made of barley meal, flour, mustard, and grated ginger; and warm water with treacle in it should be given to drink. The hay should be changed twice a day, and warmed before it is given. The washing and feeding should be repeated several times a day, and in about a week a little more calomel should be given, and afterwards flowers of sulphur. This treatment will soon effect a cure.