This bird, called also the Pigmy Curlew, is of about the same size as the far commoner Dunlin, from which it is distinguished not only by the difference in the colour of its plumage, but by the greater length of its beak, which is curved downwards. Pigmy Curlews are observed from time to time in this country at the periods of autumn and spring, and it is said that a few remain with us to breed, but their nest and eggs have never been detected. In their habits they resemble the Dunlins, from which they may readily be distinguished, even when flying, by their white upper tail-coverts. They are of wide geographical range, but nowhere abundant, and visit us on passage in spring and autumn.

THE KNOT
TRINGA CANÚTUS

Beak straight, a little longer than the head, much dilated towards the tip; tail even at the extremity; a small part of the tibia naked. Winter—throat and abdomen white; breast and flanks white, barred with ash-brown; upper plumage ash-grey, mottled with brown; wing-coverts tipped with white; rump and upper tail-coverts white, with black crescents; bill and legs greenish black. Summer—streak over the eye, nape, and all the under plumage, rusty-red, the nape streaked with black; back streaked and spotted with black, red, and grey. The upper plumage of young birds is mottled with reddish brown, grey, black, and dull white; legs dull green. Length ten inches. Eggs unknown.

The Knot, Willughby informs us, is so called from having been a favourite dish of King Canutus, or Knute. It is a migratory bird, visiting the coasts of Great Britain early in autumn, and remaining here till spring, when it retires northwards to breed. During the intervening months it keeps exclusively to the sandy or muddy sea-shore, assembling in small flocks, and mixing freely with Dunlins, Sanderlings, and Purple Sandpipers. Some authors state that it feeds principally early and late in the day, and during moonlight nights; but I have seen it on the coast of Norfolk in winter feeding at all hours of the day in company with the birds mentioned above, and differing little from them in the mode of obtaining its food. But I remarked on several occasions that, when a flock was disturbed, the Knots often remained behind, being less fearful of the presence of man; in consequence of which tardiness in rising they more than once fell to our guns after their companions had flown off. On their first arrival, they are said to be so indifferent to the vicinity of human beings that it is not difficult to knock them down with stones. Their provincial name in Norfolk is the Green-legged Shank, the latter name, Shank, being applied for shortness to the Redshank. Dr. Richardson states that 'Knots were observed breeding on Melville Peninsula by Captain Lyon, who tells us that they lay four eggs on a tuft of withered grass, without being at the pains of forming any nest.'

Flocks of young make their appearance early in August, the adults arriving a little later.

THE DUNLIN
TRINGA ALPINA

Bill a little longer than the head, slightly bent down at the tip; two middle tail-feathers the longest, dusky and pointed; a small part of the tibia naked. Winter—throat and a streak between the bill and eye white; upper plumage ash-brown streaked with dusky; upper tail-coverts dusky; lateral tail-feathers ash, edged with white; breast greyish white, mottled with brown; bill black; feet dusky. Summer—most of the upper plumage black, edged with rust-red; belly and abdomen black. Young birds have the upper plumage variously mottled with ash-brown, dusky, and reddish yellow; the bill is shorter and straight. Length eight inches. Eggs greenish white, blotched and spotted with brown.

The name variabilis, changeable, has been applied to this species of Sandpiper on account of the great difference between its summer and winter plumage. It was formerly, indeed, supposed that the two states of the bird were distinct species; of which the former was called Dunlin, the latter Purre. It is now known that the two are identical, the bird being commonly found to assume in spring and autumn colours intermediate between the two.

Except during the three summer months, May, June, and July, the Dunlin is common on all the shores of Great Britain, where there are extensive reaches of sand or mud. I have obtained specimens on the coast of Norfolk as early as the twenty-fifth of July; but, generally, it is not until the following month that they become numerous. From this time until late in the winter they are reinforced by constant additions; and in very severe weather the flocks are increased to such an extent that, if it were possible to number them, they would be probably found to contain very many thousands. Such a season was the memorable winter of 1860-61, when, during the coldest part of it, I made an excursion to the coast of Norfolk for the purpose of observing the habits of the sea-side Grallatores and Natatores which, in winter, resort to that coast. Numerous as were the species and individuals of these birds which then flocked to the beach and salt-marshes, I have no doubt, in my own mind, that they were all outnumbered by Dunlins alone. Of nearly every flock that I saw feeding on the wet sand or mud, fully half were Dunlins; many flocks were composed of these birds alone; while of those which were constantly flying by, without alighting, the proportion of Dunlins to all other birds was, at least, three to one. Added to which, while the parties of other birds were susceptible of being approximately counted, the individuals which composed a flock of Dunlins were often innumerable.