Years afterward I solved the second problem suggested by the kingfisher's den, when I had the good fortune, one day, to watch a pair beginning their tunneling. All who have ever watched the bird have, no doubt, noticed his wonderful ability to stop short in swift flight and hold himself poised in midair for an indefinite time, while watching the movements of a minnow beneath. They make use of this ability in beginning their nest on a bank so steep as to afford no foothold.
As I watched the pair referred to, first one then the other would hover before the point selected, as a hummingbird balances for a moment at the door of a trumpet flower to be sure that no one is watching ere he goes in, then drive his beak with rapid plunges into the bank, sending down a continuous shower of clay to the river below. When tired he rested on a watch-stub, while his mate made a battering-ram of herself and kept up the work. In a remarkably short time they had a foothold and proceeded todig themselves in out of sight.
Kingfisher's tunnel is so narrow that he cannot turn around in it. His straight, strong bill loosens the earth; his tiny feet throw it out behind. I would see a shower of dirt, and perchance the tail of Koskomenos for a brief instant, then a period of waiting, and another shower. This kept up till the tunnel was bored perhaps two feet, when they undoubtedly made a sharp turn, as is their custom. After that they brought most of the earth out in their beaks. While one worked, the other watched or fished at the minnow pool, so that there was steady progress as long as I observed them.
For years I had regarded Koskomenos, as the birds and the rest of the world regard bim, as a noisy, half-diabolical creature, between bird and lizard, whom one must pass by with suspicion. But that affair with the mink changed my feelings a bit. Koskomenos' mate might lay her eggs like a reptile, but she could defend them like any bird hero. So I took to watching more carefully; which is the only way to get acquainted.
The first thing I noticed about the birds--an observation confirmed later on many waters--was that each pair of kingfishers have their own particular pools, over which they exercise unquestioned lordship. There may be a dozen pairs of birds on a single stream; but, so far as I have been able to observe, each family has a certain stretch of water on which no other kingfishers are allowed to fish. They may pass up and down freely, but they never stop at the minnow pools; they are caught watching near them, they are promptly driven out by the rightful owners.
The same thing is true on the lake shores. Whether there is some secret understanding and partition among them, or whether (which is more likely) their right consists in discovery or first arrival, there is no means of knowing.
A curious thing, in this connection, is that while a kingfisher will allow none of his kind to poach on his preserves, he lives at peace with the brood of sheldrakes that occupy the same stretch of river. And the sheldrake eats a dozen fish to his one. The same thing is noticeable among the sheldrakes also, namely, that each pair, or rather each mother and her brood, have their own piece of lake or river on. which no others are allowed to fish.
The male sheldrakes meanwhile are far away, fishing on their own waters.
I had not half settled this matter of the division of trout streams when another observation came, which was utterly unexpected. Koskomenos, half reptile though he seem, not only recognizes riparian rights, but he is also capable of friendship--and that, too, for a moody prowler of the wilderness whom no one else cares anything about. Here is the proof.
I was out in my canoe alone looking for a loon's nest, one midsummer day, when the fresh trail of a bull caribou drew me to shore. The trail led straight from the water to a broad alder belt, beyond which, on the hillside, I might find the big brute loafing his time away till evening should come, and watch him to see what he would do with himself.
As I turned shoreward a kingfisher sounded his rattle and came darting across the mouth of the bay where Hukweem the loon had hidden her two eggs. I watched him, admiring the rippling sweep of his flight, like the run of a cat's-paw breeze across a sleeping lake, and the clear blue of his crest against the deeper blue of summer sky. Under him his reflection rippled along, like the rush of a gorgeous fish through the glassy water. Opposite my canoe he checked himself, poised an instant in mid-air, watching the minnows that my paddle had disturbed, and dropped bill first--plash! with a silvery tinkle in the sound, as if hidden bells down among the green water weeds had been set to ringing by this sprite of the air. A shower of spray caught the rainbow for a brief instant; the ripples gathered and began to dance over the spot where Koskomenos had gone down, when they were scattered rudely again as he burst out among them with his fish. He swept back to the stub whence he had come, chuckling on the way. There he whacked his fish soundly on the wood, threw his head back, and through the glass I saw the tail of a minnow wriggling slowly down the road that has for him no turning. Then I took up the caribou trail.
I had gone nearly through the alders, following the course of a little brook and stealing along without a sound, when behind me I heard the kingfisher coming above the alders, rattling as if possessed, klrrr, klrrr, klrrr-ik-ik-ik! On the instant there was a heavy plunge and splash just ahead, and the swift rush of some large animal up the hillside. Over me poised the kingfisher, looking down first at me, then ahead at the unknownbeast, till the crashing ceased in a faint rustle far away, when he swept back to his fishing-stub, clacking and chuckling immoderately.
