What did it all mean? I soon learned. They were making love and pairing off. The males were showing off their wing powers and their voices to the lady crows. And they must have been highly appreciated, for by the middle of April all had mated and had scattered over the country for their honeymoon, leaving the sombre old pines of Castle Frank deserted and silent.
II
The Sugar Loaf hill stands alone in the Don Valley. It is still covered with woods that join with those of Castle Frank, a quarter of a mile off. in the woods, between the two hills, is a pine-tree in whose top is a deserted hawk's nest. Every Toronto school-boy knows the nest, and, excepting that I had once shot a black squirrel on its edge, no one had ever seen a sign of life about it. There it was year after year, ragged and old, and falling to pieces. Yet, strange to tell, in all that time it never did drop to pieces, like other old nests.
One morning in May I was out at gray dawn, and stealing gently through the woods, whose
