366 Letters , Extracts from Correspondence , Notices, fyc. 
at Torquay, who has numerous specimens, assures me that he 
can find it on Dartmoor throughout the year. 
Again, as regards the Rock Martin ( Cotyle rupestris , Boie), 
though I am aware that writers on ornithology put it down 
(perhaps from analogy) as a migrant, I have not been able to 
ascertain any satisfactory proof of this habit. Mr. Moggridge 
bears testimony to its winter residence at Mentone; my friend 
Mr. Simpson assures me it spends the winter where it breeds, at 
Missolonghi in Northern Greece. I have seen it myself all the 
winter in the rocky gorges of the Morea, among the hills and 
rocks of Judsea, and throughout the Atlas range of North Africa, 
where I have noted it during every month from September to 
July*. On the other hand, I have been unable to ascertain satis¬ 
factorily a single locality where it is found only in summer. I 
trust that your world-wide contributors will soon be able to clear 
up these and all other doubtful points in the history of our 
bird-fauna. I am, Sir, yours &c., 
H. B. Tristram. 
Grantham, 15th April, 1863. 
To the Editor of ‘ The Ibis’ 
Sir, — I send you the following note on Accipiter gularis of 
the ‘ Fauna Japonica/ and Accipiter virgatus of Temminck. 
In Mr. Swinhoe’s interesting paper on the Ornithology of 
Formosa, published in the last Number of ‘ The Ibis/ reference 
is made, in page 213, to an opinion which I expressed that the 
above two species might prove identical. 
I have subsequently had the opportunity of consulting Prof. 
SchlegePs description of the two species in the first part of his 
valuable Catalogue of Birds in the Leyden Museum, and, after 
doing so, I have very little doubt that this opinion is erroneous, 
and that the learned Professor is correct in considering the two 
species as distinct. 
The specimen obtained by Mr. Swinhoe in Formosa, being 
immature, cannot be identified with certainty by any distinctive 
marks of coloration in plumage, these being only found in the 
* It is also a permanent resident on the Rock of Gibraltar. See our 
remarks on this bird in “Vacation Tourists,” 1861, p. 205.— Ed. 
