166 
Mr. H. Durnford on the Birds of 
XYI .—Notes on the Birds of the Province of Buenos Ayres. 
By Henry Durnford. 
(Plate III.) 
Before commencing these notes, I feel that some apology is 
due to the readers of f The Ibis 9 for several mistakes which 
appeared in my last communication on the birds of this dis¬ 
trict (Ibis, 1876, p. 157 et seqq.), and which I will endeavour 
to correct in the course of the following remarks. In justice 
to myself I must add that the above-mentioned communica¬ 
tion was not written with a view to its being published in 
* The Ibisfor a short residence in a new country had not 
enabled me to speak so confidently as I should have liked. 
Baradero, which I shall have occasion to mention frequently, 
is a small town about fifty-three miles further north than the 
city of Buenos Ayres, from which it is distant nearly ninety 
miles in a straight line in a W.N.W. direction. It is situ¬ 
ated on an arm, or “ riacho/' of the Parana; but as this arm 
joins the main river at both ends, it is in reality a portion of 
the Parana itself. 
[Mr. Durnford's nomenclature has been slightly altered to 
correspond with that of our ‘Nomenclator Avium Neotro- 
picalium.' The best general account of the ornithology of 
La Plata is that given in the second volume of Burmeister's 
f Beise in die La Plata-Staaten' (2 vols, Halle, 1851). In 
the P. Z. S. 1868, p. 138, and 1869, pp. 157, 631, will be 
found three articles on Mr. Hudson's valuable collections 
made near Buenos Ayres, to which references are given below. 
A new revision of the birds of La Plata, with such short cha¬ 
racters added as would enable observers in that country to 
determine the species, would be a very valuable contribution 
to our science.— Edd.] 
1. Turdus leucomelas (Vieill.); Scl. et Salv. P. Z. S. 1868, 
p. 138. 
Resident. In the winter to a certain extent gregarious, and 
common always in the belt of trees and scrub which fringe 
the shore of the La Plata, preferring low land to a more ele¬ 
vated district. There is a fact about the note of this bird 
