A search for the nest will exhaust the patience of any except the most persistent collector. Messrs. Compton and Partch have been more successful than anyone else in locating them, and all of us agree that when a bird flies to meet the visitor, as just described, it is a pure waste of time to watch or follow it. Every method known to us of locating nests by watching the actions of the parents has failed. We have located nests and then endeavored to establish rules for guidance with others, but no definite facts could be determined. It was finally agreed that it was useless to watch a bird under any circumstances more than 15 minutes. If the location of the nest is not disclosed in that time, it is safe to assume that the mate is on it, and it might be hours before the guard would go there. In the meantime it may fly half a mile away and forget to come back, even to tease the hopeful collector lying concealed in the mist and fog behind some cheerless rock. No definite range can be ascribed to any one pair of birds, because those off the nests mingle indiscriminately. Very often a bird will fly completely out of the range of vision in the fog. The action of a bird leaving a nest is unmistakable, and can always be recognized, once it is learned. It is a quick, excited, jerky flight, very close to the ground, and the bird goes but a very few yards until it feigns injury in its endeavor to entice the intruder away. It will always flutter in front of a person, even though he walk directly toward the nest. When the bird is seen to fly, the eggs are even more inconspicuous and difficult to find unless the exact spot from which it flew be located. Compton thus flushed a bird which he knew had a nest, but he was at a loss to find it. At last he left his cane as nearly as possible where the nest should have been and repaired to a near-by rock to watch and wait. In a few minutes the bird returned to the eggs, which were located about a yard from the stick. When the bird is flushed from a nest it seldom happens that the other parent is near. The nest is a mere depression about three and a half inches wide by two and a half inches deep. Most of the material is removed, but it is evidently packed down to a certain extent. No foreign material is carried at all. The nest is usually, but not necessarily, on some very slightly elevated ground and among the lichens called "reindeer moss." Some nests have been found where there was an admixture of _Hypnum_ moss and again where the dwarf willows creep, rootlike, beneath the surface. _Eggs._--I can not do better than to quote again from Mr. Hanna (1921); he writes: