Subsequently I procured several specimens which were quite distinct from _P. fuscatus_, structurally as well as in plumage answering perfectly to Hodgson's description. I wrote to Dr. Jerdon mentioning this fact, and he replied:--"I also am not satisfied of the identity of this species (_H. fulviventris_) with _Phylloscopus fuscatus_. I have recently got at Darjeeling what I take to be _Horornis fulviventris_, and it is somewhat smaller in all its dimensions, but I had not a typical _P. fuscatus_ with which to compare it. Specimens measured 4¾ to 4-7/8 inches; expanse 6½ inches; wing 2 to 2-1/16 inches. I procured the nest and eggs in July; the nest, cup-shaped, on a bank, composed of grass chiefly, with a few fibres; and the eggs, three in number, pinky white, with a few reddish spots." It is certainly not _P. fuscatus_ (though possibly some specimens of _P. fuscatus_ in the British Museum may bear a label formerly attached to a bird of this species), nor any other _Horornis_ or _Horeites_ included in Dr. Jerdon's work, all of which I have. Mr. Blyth possibly went by Mr. Hodgson's specimens in the British Museum, but some confusion has, it is known, somehow crept in amongst these; and I have no doubt myself that _Horornis fulviventris_ is a good species, and that it was the nest and eggs of this species which Dr. Jerdon found[A]. [Footnote A: I omit the article on _Abrornis chloronotus_, Hodgs, which appeared in the 'Rough Draft' under number 574 bis. There is no manner of doubt that Hodgson got the wrong nest, a nest of a Sunbird, and figured it as that of this bird.--ED.] 415. Phylloscopus proregulus (Pall.). _Pallas's Willow-Warbler_. Reguloides chloronotus (_Hodgs.), Jerd. B.I._ ii, p. 197. Reguloides proregulus (_Pall.), Hume, Rough Draft N. & E._ no. 566. Captain Cock has the honour of being the first to take, and, I believe, up to date the _only_ oologist who has ever taken, the nest and eggs of Pallas's Willow-Warbler. Mr. Brooks tried hard for the prize, but he searched on the ground and so missed the nest. He wrote to me from Cashmere, just about the time (June 1871) that Captain Cock found the nest he obtained:--"I have been utterly unable to do anything with _P. proregulus_. I shot a female, with an egg nearly ready to lay, when I first went to Goolmerg, but though I often heard the males singing, I never could find any indication of the nesting female. The feeble song, like that of _P. sibilatrix_, alluded to by Blyth as being that of _P. superciliosus_, is not that of this latter bird, but of _P. proregulus_".