At first I went to the nest, not so much to study the fishhawks as to catch fleeting glimpses of a shy, wild life of the woods, which is hidden from most eyes. The fishing was good, and both birds were expert fishermen. While the young were growing there was always an abundance in the big nest on the spruce top. The overflow of this abundance, in the shape of heads, bones and unwanted remnants, was cast over the sides of the nest and furnished savory pickings for a score of hungry prowlers. Mink came over from frog hunting in the brook, drawn by the good smell in the air. Skunks lumbered down from the hill, with a curious, hollow, bumping sound to announce their coming. Weasels, and one grizzly old pine marten, too slow or rheumatic for successful tree hunting, glided out of the underbrush and helped themselves without asking leave. Wild-cats quarreled like fiends over the pickings; more than once I heard them there screeching in the night. And one late afternoon, as I lingered in my hiding among the rocks while the shadows deepened, a big lucivee stole out of the bushes, as if ashamed of himself, and took to nosing daintily among the fish bones.
It was his first appearance, evidently. He did not know that the feast was free, but thought all the while that he was stealing somebody’s catch. One could see it all in his attitudes, his starts and listenings, his low growlings to himself. He was bigger than anybody else there, and had no cause to be afraid; but there is a tremendous respect among all animals for the chase law and the rights of others; and the big cat felt it. He was hungry for fish; but, big as he was, his every movement showed that he was ready to take to his heels before the first little creature that should rise up and screech in his face: "This is mine!" Later, when he grew accustomed to things and the fishhawks’ generosity in providing a feast for all who might come in from the wilderness byways and hedges, he would come in boldly enough and claim his own; but now, moving stealthily about, halting and listening timidly, he furnished a study in animal rights that repaid in itself all the long hours of watching.
But the hawks themselves were more interesting than their unbidden guests. Ismaques, honest fellow that he is, mates for life, and comes back to the same nest year after year. The only exception to this rule that I know is in the case of a fishhawk, whom I knew well as a boy, and who lost his mate one summer by an accident. The accident came from a gun in the hands of an unthinking sportsman. The grief of Ismaques was evident, even to the unthinking. One could hear it in the lonely, questioning cry that he sent out over the still summer woods; and see it in the sweep of his wings as he went far afield to other ponds, not to fish, for Ismaques never fishes on his neighbor’s preserves, but to search for his lost mate. For weeks he lingered in the old haunts, calling and searching everywhere; but at last the loneliness and the memories were too much for him. He left the place long before the time of migration had come; and the next spring a strange couple came to the spot, repaired the old nest, and went fishing in the pond. Ordinarily the birds respect each other’s fishing grounds, and especially the old nests; but this pair came and took possession without hesitation, as if they had some understanding with the former owner, who never came back again.
The old spruce on the mountain side had been occupied many years by my fishing friends. As is usually the case, it had given up its life to its bird masters. The oil from their frequent feastings had soaked into the bark, following down and down, checking the sap’s rising, till at last it grew discouraged and ceased to climb. Then the tree died and gave up its branches, one by one, to repair the nest above. The jagged, broken ends showed everywhere how they had been broken off to supply the hawks' necessities.
There is a curious bit of building lore suggested by these broken branches, that one may learn for himself any springtime by watching the birds at their nest building. Large sticks are required for a foundation. The ground is strewed with such; but Ismaques never comes down to the ground if he can avoid it. Even when he drops an unusually heavy fish, in his flight above the trees, he looks after it regretfully, but never follows. He may be hungry, but he will not set his huge hooked talons on the earth. He cannot walk, and loses all his power there. So he goes off and fishes patiently, hours long, to replace his lost catch.
When he needs sticks for his nest, he searches out a tree and breaks off the dead branches by his weight. If the stick be stubborn, he rises far above it and drops like a cannon ball, gripping it in his claws and snapping it short off at the same instant by the force of his blow. Twice I have been guided to where Ismaques and his mate were collecting material by reports like pistol shots ringing through the wood, as the great birds fell upon the dead branches and snapped them off. Once, when he came down too hard, I saw him fall almost to the ground, flapping lustily, before he found his wings and sailed away with his four-foot stick triumphantly.
There is another curious bit of bird lore that I discovered here in the autumn, when, much later than usual, I came back through the lake. Ismaques, when he goes away for the long winter at the South, does not leave his house to the mercy of the winter storms until he has first repaired it. Large fresh sticks are wedged in firmly across the top of the nest; doubtful ones are pulled out and carefully replaced, and the whole structure made shipshape for stormy weather. This careful repair, together with the fact that the nest is always well soaked in oil, which preserves it from the rain, saves a deal of trouble for Ismaques. He builds for life and knows, when he goes away in the fall, that, barring untoward accidents, his house will be waiting for him with the quiet welcome of old associations when he comes back in the spring. Whether this is a habit of all ospreys, or only of the two on Big Squatuk Lake—who were very wise birds in other ways—I am unable to say.
What becomes of the young birds is also, to me, a mystery. The home ties are very strong, and the little ones stay with the parents much longer than most other birds do; but when the spring comes you will see only the old birds at the home nest. The young come back to the same general neighborhood, I think; but where the lake is small they never build nor trespass on the same waters. As with the kingfishers and sheldrakes, each pair of birds seem to have their own pond or portion; but by what old law of the waters they find and stake their claim is yet to be discovered.
There were two little ones in the nest when I first found it; and I used to watch them in the intervals when nothing was stirring in the underbrush near my hiding place. They were happy, whistling, little fellows, well fed and contented with the world. At times they would stand for hours on the edge of the nest, looking down over the slanting tree-tops to the lake, finding the great rustling green world, and the passing birds, and the glinting of light on the sparkling water, and the hazy blue of the distant mountains marvelously interesting, if one could judge from their attitude and their pipings. Then a pair of broad wings would sweep into sight, and they would stretch their wings wide and break into eager whistlings,—Pip, pip, ch’wee? chip, ch’weeeeee? “did you get him? is he a big one, mother?” And they would stand tiptoeing gingerly about the edge of the great nest, stretching their necks eagerly for a first glimpse of the catch.
At times only one of the old birds would go a-fishing, while the other watched the nest. But when luck was poor both birds would seek the lake. At such times the mother bird, larger and stronger than the male, would fish along the shore, within sight and hearing of her little ones. The male, meanwhile, would go sweeping down the lake to the trout pools at the outlet, where the big chub lived, in search of better fishing grounds. If the wind were strong, you would see a curious bit of sea lore as he came back with his fish. He would never fly straight against the wind, but tack back and forth, as if he had learned the trick from watching the sailor fishermen of the coast beating back into harbor. And, watching him through your glass, you would see that he always carried his fish endwise and head first, so as to present the least possible resistance to the breeze.