At this stage, during warm, dry spells, the dried excrement of the birds will accumulate on the surface of the ground. This, as a matter of economy, as well as a sanitary necessity, should be carefully swept up before a rain, as the birds will sometimes drink water from the puddles standing around, and it will often seriously affect their appetites, as both yards and droppings are very offensive when wet. Shade is absolutely necessary at this age during warm weather, as ducklings can never be made in good condition when exposed to the sun during the extreme heat of summer. It affects their appetites at once, reducing the consumption of food by one-half. It is always well, if possible, to locate your yards so that the birds can have access to shade. If not, artificial shade must be constructed to meet the ends. My plan is to set up four stakes, about 6x10 feet, forming a parallelogram. Sideboards should be nailed on these stakes about two feet high. These can be covered with old boards, pine boughs, bushes, or thatched over with meadow hay,--whatever is most convenient to the grower. Great care should be taken in feeding by giving all the concentrated food the birds can be made to eat, and no more, as the largest of them will be ready for market when nine weeks old. Frighten and excite the birds as little as possible while sorting them. The best way to do this is to use a wide board some ten feet long, with two holes cut in the upper side near the middle. These holes should be two feet apart, and large enough to admit the hands for convenient handling. Fifteen or twenty of the birds should be driven in a corner and confined with this board. The birds should now be taken by the neck, one at a time, the largest and choicest selected for market, the rejected ones put in a temporary yard by themselves. [Illustration] This process should be repeated until the whole hatch is sorted, when the culls can be returned to their old quarters. They will have a better chance than before, and in a few days will be as good as the others. The oldest hatches, which usually come out in February and March, are all sent to market. The price is too high to save for breeders, but from subsequent hatches, those that come out in April and May, we select our breeding stock. How to Select Breeding Stock.