[Ill.u.s.tration: Fig. 7.]
Let long end of cord hang free so that it may be pa.s.sed through the mouth when skull is set on neck-wire. With this done, lay aside the body.
[Ill.u.s.tration: Fig. 8.]
The next step is wiring the wings and legs and subst.i.tuting muscles of same. To place a wing-wire draw the wing inside out. Take wing bone in left hand. Place point of wire under small tendon that draws across back of elbow joint, push through and up to wrist. Turn wing right side out and by parting feathers on under side of wrist, locate two points of bone at joint which have a cord or tendon drawn across between them.
Work the wire through under this.
The simplest way to anchor tip of wing-wire is to push it outside skin just forward of wrist, turn a short right angle bend near its tip with pliers and carrying it forward, push the point through a hollow pan which will be found in the hand bones (see Fig. 8).
After a wing-wire is set, wrap cotton, tow, or excelsior about the upper arm-bone to approximate shape and size of flesh removed. Wrap slightly with thread or cord and tie.
In a small bird in which the forearm was skinned out from the inside, slip in a film of cotton or tow to replace flesh of same. In a large bird in which the wing was opened along forearm and hand, lay in a soft filling after skin is in place on artificial body and sewn up. Sew wing incision carefully, beginning at body and keeping feathers out of st.i.tch.
To place the leg-wires, start sharpened end into ball of foot, push wire upward through back of leg to hock or heel joint. Take leg in left hand, keeping heel straight, and push wire through at back of joint. A little turning of the wire will aid in pa.s.sing through leg easily.
Now turn leg inside out and push wire to just beyond end of shin bone (see Fig. 9). Slip wire rapidly back and forth in leg to make it run easily. There should be no kinks in wires.
[Ill.u.s.tration: Fig. 9.]
Hold wire down to back of bone and wrap on cotton, tow, or excelsior, according to size of bird, to replace flesh. Tie this material loosely with a few turns of thread or cord. See that wing and leg wrapping is smooth and nicely tapering from elbow and heel.
It now remains to place the body, set wings and legs and tail, sew up the breast incision, and, if a large bird, the wings.
In preparing to place the body, take a turn of end of nape cord about tip of neck-wire and twist a wisp of cotton about them both to prevent wire catching in neck skin when pa.s.sing through. Hold up the bird-skin by the head, shake it out loose and rattle neck-wire up through the neck. Run wire out of mouth, remove cotton and release free end of nape cord. Draw wire back to base of skull, leaving nape cord hanging from mouth. Now push wire through brain cavity, between eye sockets and forward out of roof of mouth inside until neck is seated in brain cavity. Tip of wire may have to be curved to accomplish this, in curve-billed birds.
When head is set take excelsior body in right hand, hold it with head up, and with left hand pull shoulder skin into place. Now lay the bird down, take a wing-wire and start it through the body at side of back, one-half to one and one-half inches, according to size of bird, to rear of actual position of shoulder joint.
Pull wire through on opposite side of breast. When head of wing-bone is drawn down to same distance as above, from body, bend wire sharply forward to lay upon body, thus setting shoulder joint so that it is flexible. Now turn over end of wire left protruding from side of breast and clinch it into body squarely. When wings are set shake skin down over body and set legs.
Having previously marked the hip joint with a spot of ink, run a leg-wire through at this point, quartering it out on opposite side where thigh will set. Pull wire through to a considerable length without drawing other end up into the foot.
Loop sharp end squarely, with long enough point to go clear through body again, push it back through, clinching tip down on other side. Now pull the knee to its proper distance from hip joint, thus leaving bare wire for thigh bone. Bend thigh into place flat against side of body, with knee at side of breast.
When legs are set shake and carefully pull skin of rump into place. Take tail-wire and push it through center of tail, under the bone, using care that it does not disturb tail quills. Push sharp end of wire into body above center and forward of end of body.
Consult notes for actual set of tail. See that wire supports tail without looseness. (For general details of wiring, see Fig. 10.) Fill b.u.t.t of tail and thighs with a little chopped tow.
[Ill.u.s.tration: Fig. 10.]
Now lay the bird upon its back. Turn the legs out at the sides a little, leaving knees against body. Draw edges of skin together along incision and sew up with medium st.i.tches, neither short and labored or long and slouchy. Begin at rump end of incision.
In a bird in which the neck was opened to accommodate skinning the head, sew up this incision carefully, beginning at body end and sewing toward head.
When a large bird, in which the wings were opened for cleaning, is to be mounted with closed wings, very little sewing need be done, but if the wings are to be raised or spread the incision should be neatly st.i.tched its entire length.
Also in a large bird, in which the tendons were drawn through ball of foot, the fatty tissue of the ball should be replaced with chopped tow and the short incision sewn up. Beeswax will keep thread from fraying.
With the sewing all done, bend the legs into semi-position, fold the wings, if to be closed, and turn them sharply up over the back so that their under side is outward and elbows meet over center of back. Shake out the plumage a little by grasping the feet. Drill the perch and mount the bird upon it. Position the legs, body, and head, and set the tail as per Nature, to suit the position.
Adjust the plumage a little with tweezers. Compress the wings loosely to the sides. If there is an unnatural hollowness between the shoulders, lift the mane and at one side of it where the skin is bare, make a short longitudinal incision. Through this place a little soft filling over and between the shoulders to fill out hollowness. It is not necessary to sew up this incision in a long feathered specimen.
Now settle down to the fascinating task of adjusting the feather tracts, nicely manipulating the plumage, in places feather by feather, until characteristic markings of the species are brought out in their normal position as though the bird had just ruffled and then allowed the feathers to settle back softly. Jewelers" tweezers are the finest thing to be had for this work.
Return to the head. Pull the nape cord taut and tie it to neck-wire in roof of mouth. Cut off the wire within the mouth so that the mandibles close naturally. Tie the bill shut with cord or thread. It is necessary in many specimens to thread the cord through the nostrils to accomplish this.
To set the eyes, wipe a drop of liquid glue into the cotton of the eye sockets and inside the lids, using a bit of wire for the purpose. Set the eyes with regard to expression to suit the position, picking the lids over their edges with needle and tweezers.
Pin, or tie with thread, the toes to grasp the perch.
Cut two pieces of thin cardboard for the tail. Curve them slightly.
Place one over and one under the long quills just clear of the coverts and pin them through in two or three places to hold the quills even until dry.
In mounting a specimen with spread wings, card the flight feathers full length with curved strips, same as tail, then run a long sharpened wire into the body under each wing and lay a loose bunch of cotton over it, under the quills, to raise them and hold in proper position until dry.
To wrap the body feathers for keeping place until dry, stick two or three long pins in back and breast, along center of both. These hold the light wrapping of thread from slipping out of place as it goes on. Lay the thread around the specimen lightly. If the wings do not set right without other aid than the wire already in them, pin them with sharpened wires, one through the double bone just forward of the wrist and one through close forward of the elbow, running wires firmly into the body.
(For general details see Fig. 11.)
[Ill.u.s.tration: Fig. 11.]
To soak up a dried bird skin for preparation to mount, the simplest and quickest means is immersion in a weak solution of carbolic acid in water, leaving for a day or two until tissues are soft.
When the skin is relaxed so that wings and legs may be manipulated without breaking, squeeze water from it and follow same method given for cleaning a fresh skin. With this treatment a good dry skin will come out as soft and workable as a fresh one. a.r.s.enic and grease burnt skins are hard to get much out of.
To make up dry bird skins for keeping to mount at a future time, follow regular method of thorough skinning and cleaning. Apply dry a.r.s.enic powder to inner surfaces. Wrap skull, wing, and leg bones lightly with cotton or tow. Turn skin right side out and push a neck and light body filling of fiber that will allow ventilation, into place. Arrange the plumage and hang the skin up by a thread or cord sewn through neck at base of skull.
To make a cabinet skin for study purposes, roll a neat body and neck of material to suit size of bird, place it inside the skin, st.i.tch incision together, plug eye sockets with cotton, tie the elbows together on the body with a loop sewn through the back, tie bill shut, adjust feathers neatly and lay the specimen in a hollowed bed made of a piece of wire netting bent to size. See that wings cover back neatly. Lay head of short necked bird out straight, neck somewhat shorter than natural, and of long necked specimen along right side, looped to body with cord sewn through neck and side. Cross the feet and tie with a tag bearing complete data as to locality, date, s.e.x, etc., with collector"s name. To determine s.e.x of a bird specimen, open the abdomen under thigh. Testes of male will be found under fore end of pelvis and are white, in young bird, very small.
Now when the period of drying is past, return to the mounted bird for finishing touches. With scissors cut the thread feather wrappings. Pull out pins in back and breast and cut off wing pinning-wires flush under the plumage. If the specimen was primarily mounted on a rough temporary perch, remove to the finished permanent stand and color legs and fleshy, exposed parts of face skin to natural hues with tube oil colors and a soft brush. Thin the color for this purpose with a little turpentine and a very little touch of varnish.
In all work in taxidermy, practice develops deftness and a personal system of handling the details that cannot be brought about except by sympathetic attention to the art. The work is not difficult when the details are addressed with quiet thought and very little main strength.
[Ill.u.s.tration]
SKINNING, PREPARING, AND MOUNTING A SMALL MAMMAL
CHAPTER III
SKINNING, PREPARING, AND MOUNTING A SMALL MAMMAL
We will choose a gray squirrel as our subject in this chapter, as this little rodent has a tough skin that is easily manipulated. A cottontail rabbit might be more easy to procure, but is not so satisfactory for the purpose of initiative steps in this work, as his skin is extremely delicate and requires especially careful handling in preparation and mounting.