_Eggs._--The northern phalarope lays four eggs almost invariably, rarely three eggs constitute a second set; as many as five and even seven eggs have been found in a nest, the largest number being the product of two females. The eggs vary in shape from subpyriform to ovate pyriform, are slightly glossy and are very fragile. The prevalent ground colors range from "pale olive buff" to "dark olive buff" or "ecru olive;" "olive buff" seems to be the commonest shade. In richly colored sets the colors range from "Isabella color," or "Dresden brown" to "buckthorn brown;" and in light buffy sets from "cream buff" to "cream color." The size, type, and arrangement of markings vary greatly in endless patterns. Some eggs, perhaps only one in a set, are evenly covered with small spots or dots, but more often these are mixed with larger, irregular spots or blotches. Some eggs are boldly marked with large irregular blotches. The colors of the markings range from "sepia," or "warm sepia," and "bister" to deep blackish brown, depending on the depth of the pigment. The underlying spots, in various drab shades, are small, inconspicuous and not numerous. In my series of over 50 sets there are two abnormal eggs; one is plain bluish white and unmarked; and another is similar except for one large blotch of "sepia" covering the large end. The measurements of 119 eggs, in the United States National Museum, average 29 by 20 millimeters; the eggs showing the four extremes measure =33= by 21, 28 by =22.5=, =27= by 19, and 31 by =18.5= millimeters. _Young._--The period of incubation does not seem to be definitely known, but probably it is not far from 21 days. A set of four eggs found by H. B. Conover on June 10 hatched on the evening of June 30. Incubation is performed largely, but perhaps not wholly, by the male. H. H. Slater (1898) writes: Jerdon asserts that the females (of all the phalaropes presumably) leave the care of the nests to the males and lead a club life in separate flocks. In the present species I have not found the sex to be so much "emancipated." I have never shot the red-necked phalarope off the nest, often as I have had a chance to do so, nor have I seen bare hatching spots on the breasts of either sex. I have no doubt that the males are the most attentive parents, but in the case of isolated nests the second bird makes its appearance before you have been there long, and I have repeatedly seen both with the young. In fact, I should have said that of all the birds I know the present species is the most connubial, and the mutual devotion of a pair is a most charming thing to see--in fact, quite touching. When not actively employed they treat themselves, and one another, to all manner of pretty and playful endearments. Hugh S. Gladstone (1907) says: