It is now that the advantage will be seen of putting distinctive jesses on the hawks. The trainer must watch the board carefully. He may not be able to get within 80 yards of it. But from his hiding-place, be it far or near, he must tell over the number of his charges every morning, noon, and evening, so as to see that all have been down. A field-glass may be necessary to identify each visitant. Brown-jess may come down at 6 a.m., take a light breakfast, and be off. White-jess may not appear till 12; and even then no signs of Black-jess. The case begins to look serious. But at 12.50 at last a hawk comes down. Is this the truant? Or is it Brown-jess again, with her luncheon appetite come on? The glass will tell you quickly if the colour of the jesses worn corresponds to the one name or the other. But if both hawks wore the same coloured jesses, you could not say. If the last comer is Black-jess--only delayed till so late by mere want of appetite--she may be left out, perhaps for some days longer. And the extra days' exercise will undoubtedly make her a faster and stronger hawk. But if you cannot tell one hawk from another, it will be impossible for you to know when one has missed two successive meals or not. If Black-jess absents herself all day until the evening repast, the inference is strong that in the morning she killed something for herself. If she keeps away for a whole day, that conclusion becomes almost a certainty. She must be taken up when the first chance occurs. Here, however, arises a fresh difficulty. If it is a tiercel who so absents himself--especially a small tiercel--the presumption that he has killed for himself is pretty well conclusive. But what if it is a falcon? Her brother may have chased and killed; and the sister--a slow hawk who could not catch anything for herself--may have seen the flight, or seen the tiercel pluming his dead quarry, and then come up, and by her superior strength driven him off, and pirated the spoil. You, wrongly inferring that it was she who killed the quarry, will take her up the next day, quite prematurely, and leave the real captor, who is much more worthy of bonds and imprisonment, to remain in dangerous liberty. The same doubt may arise when the absentee is an extra strong and extra greedy bird of either sex. That she or he has breakfasted or dined out is, of course, equally clear. But was it the captive of her own wings and talons that she devoured, or that of a weaker, but cleverer, hawk? These are questions impossible to answer, unless some person has actually seen what occurred. The safest plan, though not the most magnanimous, when such evidence cannot be got, is, when one hawk has clearly been killing, to take the whole lot up.