This section is from the book "Camping And Woodcraft", by Horace Kephart. Also available from Amazon: Camping and Woodcraft.
To ship rabbits, squirrels, etc.: do not skin them, but remove the entrails, wipe the insides perfectly dry, wrap in paper, and pack them back dc<vn.
Never pack birds in straw or grass without ice, for in damp or warm weather this will heat or sweat them. If they freeze they must be kept so, as they will quickly spoil after thawing. Food in a bird's crop soon sours; the crop should be removed.
To preserve birds in warm weather for shipment: draw them, wash the inside perfectly clean, dry thoroughly, and then take pieces of charcoal from the fireplace, wrap them in a thin rag, and fill the abdominal cavity with this. Also fill the bill, ears, eyes, and anal opening with powdered charcoal, to keep off flies and prevent putrefaction. Reject all pieces of charcoal that are only half-burnt or have the odor of creosote. Birds stuffed in this way will keep sweet for a week in hot weather.
 
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