The head and neck can be placed in any attitude, the body supported, the wings closed, extended or elevated, the tail depressed, raised or expanded, the thighs set horizontal or oblique, without any aid from wire. Cotton will effect all this.
A very small proportion of the skull-bone, say from the forepart of the eyes to the bill, is to be left in; though even this is not absolutely necessary. Part of the wing-bones, the jaw-bones and half of the thigh- bones remain. Everything else--flesh, fat, eyes, bones, brains and tendons --is all to be taken away.
While dissecting it will be of use to keep in mind that, in taking off the skin from the body by means of your fingers and a little knife, you must try to shove it, in lieu of pulling it, lest you stretch it.
That you must press as lightly as possible on the bird, and every now and then take a view of it to see that the feathers, etc., are all right.
That when you come to the head you must take care that the body of the skin rests on your knee; for if you allow it to dangle from your hand its own weight will stretch it too much.
That, throughout the whole operation, as fast as you detach the skin from the body you must put cotton immediately betwixt the body and it; and this will effectually prevent any fat, blood or moisture from coming in contact with the plumage. Here it may be observed that on the belly you find an inner skin, which keeps the bowels in their place. By a nice operation with the knife you can cut through the outer skin and leave the inner skin whole. Attention to this will render your work very clean; so that with a little care in other parts you may skin a bird without even soiling your finger-ends.
As you can seldom get a bird without shooting it, a line or two on this head will be necessary. If the bird be still alive, press it hard with your finger and thumb just behind the wings, and it will soon expire. Carry it by the legs, and then the body being reversed the blood cannot escape down the plumage through the shot-holes. As blood will often have issued out before you have laid hold of the bird, find out the shot-holes by dividing the feathers with your fingers, and blowing on them, and then with your penknife, or the leaf of a tree, carefully remove the clotted blood and put a little cotton on the hole. If, after all, the plumage has not escaped the marks of blood, or if it has imbibed slime from the ground, wash the part in water, without soap, and keep gently agitating the feathers with your fingers till they are quite dry. Were you to wash them and leave them to dry by themselves, they would have a very mean and shrivelled appearance.
In the act of skinning a bird you must either have it upon a table or upon your knee. Probably you will prefer your knee; because when you cross one knee over the other and have the bird upon the uppermost, you can raise it to your eye, or lower it at pleasure, by means of the foot on the ground, and then your knee will always move in unison with your body, by which much stooping will be avoided and lassitude prevented.
With these precautionary hints in mind, we will now proceed to dissect a bird. Suppose we take a hawk. The little birds will thank us with a song for his death, for he has oppressed them sorely; and in size he is just the thing. His skin is also pretty tough, and the feathers adhere to it.
We will put close by us a little bottle of the solution of corrosive sublimate in alcohol; also a stick like a common knitting-needle and a handful or two of cotton. Now fill the mouth and nostrils of the bird with cotton, and place it upon your knee on its back, with its head pointing to your left shoulder. Take hold of the knife with your two first fingers and thumb, the edge upwards. You must not keep the point of the knife perpendicular to the body of the bird, because, were you to hold it so, you would cut the inner skin of the belly, and thus let the bowels out. To avoid this let your knife be parallel to the body, and then, you will divide the outer skin with great ease.