When the little turkeys have reached this stage, the best plan of managing them depends upon circumstances. If there is little danger of enemies disturbing them, they may be given a light feed in the morning and then allowed to forage where they please, the person in charge looking occasionally to see that they do not go too far and, if necessary, bringing them back or starting them off in another direction. In case of a sudden, hard shower the turkeys must be looked up, and if any have been caught out in the rain and have been chilled and wet, they should be warmed and dried at once. The usual way to do this is to wrap the bird in a piece of old flannel and place it in an oven at a temperature of about 100 degrees, or near a stove. If this is done promptly, a bird that seemed to be nearly dead from wet and cold may be running about as well as ever in an hour. A large part of the losses of little turkeys is due to lack of attention in matters of this kind, or to delaying it until the injury cannot be fully repaired. [Illustration: Fig. 163. Turkey hen with brood. (Photograph from the Bureau of Animal Industry, United States Department of Agriculture)] After the young turkeys are five or six weeks old, they do not need such close watching. They are now so well feathered that their plumage sheds rain, and if they are thrifty, a little wetting will not hurt them. It is at this age that the symptoms of the disease called _blackhead_ begin to appear, if it is present, and the turkeys pine away and die one by one. Blackhead is a contagious liver disease which affects fowls as well as turkeys, but is most fatal to young turkeys, because it is a filth disease; as has been said, turkeys are especially sensitive to foul conditions, and the young of all kinds of poultry are more sensitive to such conditions than the adults. The germs of the disease pass into the soil with the excrement of affected birds and may remain there for several years. Young birds feeding on land containing these germs may take up some with their food. If the birds are vigorous and thrifty and the land is not badly infected, no harm may be done, but if the birds are weakly and the land is so badly infected that they are constantly taking up more germs, the disease soon develops in acute form. [Illustration: Fig. 164. Driving turkeys to market in Tennessee. (Photograph from the Bureau of Animal Industry, United States Department of Agriculture)]