The eggs are somewhat broad ovals, typically a good deal pointed towards the lesser end. They vary, however, much both in size and shape: some are short and broad, decidedly pointed at the small end; others are more elongated, and some are almost regular ellipsoids. The eggs have little or no gloss; the ground-colour is white, with a more or less perceptible though very faint greenish tinge. Typically they are very Shrike-like in their markings, the majority of these being gathered together in a more or less dense zone near the large end. The markings consist of small spots, blotches, and specks of pale yellowish brown, more or less intermingled with spots and specks of dull inky purple or grey; in many eggs there are very few markings, and these are mere spots except in the zone, while in others full-sized markings are scattered, though thinly, more or less over the whole surface of the egg. In some the zone is confluent and blurred; in others composed of small sharply defined specks and spots. Here and there a pretty large yellowish-brown cloud may be met with partially or entirely bounded by a narrow hair-like black line. Tiny black specks now and then occur, and little zigzag lines that might have been borrowed from a Bunting's egg; but these are not met with in probably more than one out of ten eggs. In length the eggs vary from 0·6 to 0·75, and in breadth from 0·48 to 0·55; but the average of sixteen eggs is 0·66 by 0·5. 406. Phylloscopus tytleri, Brooks. _Tytler's Willow-Warbler_. Phylloscopus tytleri, _Brooks, Hume, Rough Draft N. & E._ no. 560 bis. Tytler's Willow-Warbler, as yet a rare bird in collections, and which appears only to straggle down to the plains of Upper India during the cold season, was found by Captain Cock breeding at Sonamerg (9400 feet elevation) in the Sindh Valley, Cashmere, in June. Mr. Brooks, who discriminated the bird, said of it and its nidification:--"In plumage resembling _P. viridanus_, but of a richer and deeper olive; it is entirely without the 'whitish wing-bar,' which is always present in _viridanus_, unless in very abraded plumage. The wing is shorter, so is the tail; but the great difference is in the bill, which is much longer, darker, and of a more pointed and slender form in _P. tytleri_. The song and notes are utterly different, so are the localities frequented. _P. viridanus_ is an inhabitant of brushwood ravines, at 9000 and 10,000 feet elevation; while _P. tytleri_ is exclusively a pine-forest _Phylloscopus_. In the places frequented by _P. viridanus_, it must build on the ground, or very near it; but our new species builds, 40 feet up a pine-tree, a compact half-domed nest on the side of a branch.