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Show 1871.] MR. H. E. DRESSER ON EUROPEAN BIRDS' EGGS. 103 brought them here for inspection. They belong to the following species, viz.:- Micronisus brevipes. Motacilla citreola. Turdus fuscatus. Reguloides superciliosus. Ruticilla aurorea. At the same time I beg leave to offer the following remarks respecting them. "MICRONISUS BREVIPES. " It is not long ago that the eggs of this Sparrow-hawk were first made known through Dr. Kriiper, who procured them near Smyrna. The learned Doctor stated then that, as many of these Sparrow-hawks appeared to pass onwards into Europe, he felt sure that the species would be found to breed in Turkey or in Russia; and such proved to be the case, as Mr. W . Schluter of Halle subsequently procured both birds and eggs from Mr. Hodek, who took them near the Tiniok river, on the Servio-Bulgarian frontier, near Piconica in Servia. These eggs and birds were exhibited by Mr. Schluter, who also wrote an article respecting them in the ' Zoologischer Garten,' p. 375 (1869). " Since then Dr. Kriiper, who has been collecting in Greece, has brought back several sittings of the eggs of this bird collected by him in that country, one of which, consisting of three eggs, I am enabled to exhibit. These eggs were taken by Dr. Kriiper at Olympus, on the 12th of June last (1870); but I regret to say that I have not yet received from him any particulars as to the position of the nest, &c. In size they measure 1-JJ-- by 1-^j inch, and in appearance are not unlike the eggs of the Hen-Harrier (Cercus cyaneus), but differ in having the pores deeper and further apart, and also in being of a more intense green colour in the inside. " I have also the pleasure to exhibit two skins of this rare Hawk, procured by Dr. Kriiper in Greece-the one adult, and the other immature. " REGULOIDES SUPERCILIOSUS. " These eggs are of considerable interest, as the bird is an occasional straggler to Europe, and has also been procured in England. The Indian collectors, and Mr. A. O. H u m e in particular, have long endeavoured in vain to procure them. I have also lately received a letter from Mr. Brooks of Etawah, in which he says that he hopes ere long to be in possession of genuine eggs of this rare bird; and, curiously enough, he appears to think that they may prove to be (as is actually the case) pure white and unspotted. Mr. A. O. H u m e writes from Simla, under date of 24th June last (vide Ibis, 1870, p. 530), that the eggs of this bird were brought to him by a native collector from Cbimbla with the parent bird. He writes respecting them as follows:-' The ground-colour is a very delicate greenish white; and they are thinly speckled and spotted, chiefly |