Ermine is at its best when the cold is most intense, the tawny weasel coat turning from fawn to yellow, from yellow to cream and snow-white, according to the latitude north and the season. Unless it is the pelt of the baby ermine, soft as swan's down, tail-tip jet as onyx, the best ermine is not likely to be in a pack brought to the fort as early as Christmas. Fox, lynx, mink, marten, otter, and bear, the trapper can take with steel-traps of a size varying with the game, or even with the clumsily constructed deadfall, the log suspended above the bait being heavy or light, according to the hunter's expectation of large or small intruder; but the ermine with fur as easily damaged as finest gauze must be handled differently. Going the rounds of his traps, the hunter has noted curious tiny tracks like the dots and dashes of a telegraphic code. Here are little prints slurring into one another in a dash; there, a dead stop, where the quick-eared stoat has paused with beady eyes alert for snowbird or rabbit. Here, again, a clear blank on the snow where the crafty little forager has dived below the light surface and wriggled forward like a snake to dart up with a plunge of fangs into the heart-blood of the unwary snow-bunting. From the length of the leaps, the trapper judges the age of the ermine; fourteen inches from nose to tail-tip means a full-grown ermine with hair too coarse to be damaged by a snare. The man suspends the noose of a looped twine across the runway from a twig bent down so that the weight of the ermine on the string sends the twig springing back with a jerk that lifts the ermine off the ground, strangling it instantly. Perhaps on one side of the twine he has left bait--smeared grease, or a bit of meat.