The number of eggs is normally four, occasionally only three, and as many as five and even six have been found in a nest. The measurements of 100 eggs, furnished by Rev. F. C. R. Jourdain, average 34.3 by 24.4 millimeters; the eggs showing the four extremes measure =38.3= by 25.4, 35 by =25.8=, =31.3= by 23.2, and 32 by =23= millimeters. _Young._--Incubation is shared by both sexes and requires 22 days. Macgillivray (1852) says of the young: Like those of the golden plover and lapwing, they leave the nest immediately after exclusion from the egg, run about, and when alarmed conceal themselves by sitting close to the ground and remaining motionless. If at this period a person approaches their retreat, the male especially, but frequently the female also, flies up to meet the intruder and uses the same artifices for deceiving him as many other birds of this family. After they are able to shift for themselves the young remain several weeks on the moors with their parents, both collecting into small flocks, which are often intermingled with those of the golden plover, and often in the evenings uniting into larger. They rest at night on the smoother parts of the heath, and both species, when resting by day, either stand or lie on the ground. When one advances within a hundred yards of such a flock it is pleasant to see them stretch up their wings, as if preparing for flight, utter a few low notes, and immediately stand on the alert, or run a short way; but at this season they are not at all shy. Seton Gordon (1915), after giving a charming account of the breeding haunts of the dunlin in Scotland, has this to say about the solicitude of a devoted mother. It was about this time that I saw the hen in precisely the same locality as before. She showed much more anxiety than the cock, uttering almost incessantly two alarm notes as she walked round me. One of these notes was the characteristic trill, unlike, I think, any other cry in the bird world; the other, which appeared to be the note of extra alarm, was a harsh cry reminding me much of the alarm note of the lesser tern. In order to observe the effect, I called several times, imitating the cry of one of her chicks. The effect was striking and instantaneous; the bird rushed up in alarm and literally rolled herself about on the ground with feathers ruffled. She, indeed, presented such an appearance that it was quite impossible to see her head or feet emerging from the disheveled bundle into which she rolled herself. Evidently her tactics were quite different--considerably less elegant, but perhaps equally forcible--to those used by the dotterel under similar circumstances. After a time she began to realize that her deception was producing no effect on the object of her mistrust, and moved anxiously round me.