I turned to look at the marsh hawks just in time to see the female alight on the ground by a stunted willow bush far across the marsh. I waited, one, two, three minutes, but no bird rose. Evidently she was on the nest. Keeping my eye fixed on that special bush, which looked like a score of others, I plunged into the marsh, intending to bound like a chamois from crag to crag. On the second bound I slipped off a tussock and went up to my knees in mud and water. The rest of the way I ploughed along, making a noise at each step like the bittern's note. Half-way to the bush, the mother hawk rose and circled around us, screaming monotonously. For half an hour we searched back and forth without finding any nest. At last we hid in a willow thicket, thinking that perhaps the hawk might go back to her nest. Instead, both birds disappeared in some distant woods. The sun was getting low and we were miles from our inn; yet as this was the nearest either of us had ever been to finding a marsh hawk's nest, we decided to hunt on until dark. [Illustration: THE MARSH HAWK'S NEST] I laid out a route from my bush to another about thirty yards away, and between those two as bounds planned to quarter back and forth over every square foot of ground, moving toward the woods where the hawks had gone. It seemed an almost hopeless hunt, for the marsh at this point was dry, with patches of bushes, masses of sedge, and piled heaps here and there of dry rushes. As I reached my farther boundary and was about to return, I straightened my aching back and looked beyond the bush. There, directly ahead, in a space fringed by spirea bushes but in plain sight, lay a round nest on the ground--about eight inches across and three inches deep, made of coarse grasses ringed around with rushes. Beneath the nest was a well-packed platform several inches thick. I think that this was a natural pile of rushes pressed down by the bird. There, under the open sky, were five large eggs of a dirty bluish-white, nearly ready to hatch. They were the size of a small hen's egg. The very second I caught sight of the nest the mother hawk came dashing through the air, from some unseen perch where she had been watching me with her telescopic eyes. Fifty feet away, she folded her wings and dived at my head, falling through the air like a stone. With her fierce unflinching eyes, half-open beak, and outspread claws, she looked dangerous. Ten feet away, however, she swooped up and circled off in ever-widening rings, screaming mournfully. Beside the nest was one barred tail-feather. I crossed a moor, with a name of its own And a certain use in the world no doubt, Yet a hand's-breadth of it shines alone 'Mid the blank miles round about: For there I picked up on the heather And there I put inside my breast A moulted feather, an eagle-feather! Well, I forget the rest.