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Letters, Announcements, &c. 

extimis nigris, scapis albis et pogoniis externis rufescen- 
tibus: alis fuscis, secundariis rufo variegatis : gula et 
ventre medio albis, hypochondriis et crisso distincte nigro 
transfasciatis ; rostro nigro : pedibus fuscis: long. tota cir. 
7°5, alee 4°3, caudee 1°8, tarsi 1°3, rostri a rictu 6. 
Hab. Veragua (Arcé). 
This species is quite distinct from any hitherto described. 
rate It is smaller than even O. thoracicus, to which it is perhaps 
| most nearly allicd. The white throat and belly, the strongly 
marked flanks, together with the deep rufous colour which 
encircles the whole of the anterior part of the body, neck, and 
head, render it a conspicuous species. 

XXX VII.—Letters, Announcements, &c. 
The following letters, addressed ‘To the Editor of ‘The 
Ibis,’ ’’ have been received :— 
Sir,—lI beg leave to offer the following short notes on several 
species of birds found in Corsica as an appendix to Mr. C. 
B. Wharton’s paper on the ornithology of that island (anted, 
p- 17). ITalso add the names of seven species which came 
under my notice in the years 1865-66, as well as seven extra 
species observed in 1875. 
The only general observation I should like to make is that 
; a considerable proportion of the individuals of the different 
a species seems as though they only made Corsica a temporary 
\) halting-place on their journey northwards; and I feel con- 
. fident that if a really perfect and trustworthy list of Corsican 
i birds could be noted, say during a term of three or more years, 
| the number of species would be found to be comparatively 
limited, and that of the spring migrants bear but a small pro- 
portion to the entire list. In the case of several species, both 
Mr. C. B. Wharton and myself would come across a con- 
siderable number of individual birds during a few consecutive 
days, after which they were suddenly lost sight of. Could 
any ornithologist be found who would furnish us with a list, 
such as I have already suggested, of the birds of Corsica and 
Sardinia, coupled with a very accurate record of dates, eleva- 

