70 Scientific Proceedings, Royal Dublin Society. 



some lonely river's bank. It seems to me to be generally darker 

 in colour than the European wren, and rather stronger on the 

 wing. 



CiSTOTHORUS STELLARis (Caban.) Short-billed Marsh Wren. — 

 I have occasionally met with this bird on the margins of swampy 

 ponds, but have not found it common. 



Akthus ludovicianus (Licht.) Titlark — It arrives in flocks 

 early in March. The first I have noticed was on the 6th of that 

 month. They make a stay of some weeks, longer or shorter 

 according to the weather, and especially frequent newly ploughed 

 lands. A few individuals remain long after the flocks have gone 

 northward, but I doubt if any of them breed in the district. 

 They appear again in autumn, in smaller flocks, but do not stay 

 so lono-,' though an occasional bird may be met with all through 

 the winter. I have notes of having seen it on the 1st of Decem- 

 ber, and on the 15th of January. 



Mniotilta VARIA (VieiU.) Black-and- White Creeping-Warb- 

 iQ'y, — Common. It arrives generally in the beginning of April, 

 The earliest I have noticed was March the 30th. The males 

 appear to arrive a considerable time before the females, and to 

 be generally more numerous. In its way of running about the 

 bark of trees, it much resembles the brown creeper, but it visits 

 the smaller branches more than that bird does. Its song is a 

 run of three notes, ascending by full tones, repeated four times, 

 and ending with a single note one tone below the lowest of the 

 others ; but it is so rapid that it is difficult to distinguish it with 

 certainty. 



Pahula AMERICANA (Bonap.) Bltic Felloiu-backed Warbler. 

 — Not a common bird, and some years I have not seen it at all. 

 I have only noticed it in spring and early summer. The earliest 

 I have taken was on the 13th of April. It is generally found in 

 pairs, among deciduous timber near some stream. Its song is a 

 trill, ending with an abrupt jerk, like " whee-u." 



Dendrgeca coronata (Baird.) Yellow-rumped Warbler. — 

 This is one of the commonest warblers in the district, and spends 

 great part of the year there. They come about the end of April, 

 or the beginning of May, and remain until YQxy late in the 

 autumn. On one occasion I met a small flock on the 16th 

 February during some very warm weather, in a sheltered valley in a 



