Letters, Extracts, Notices, ^c. 163 
in the Italian Collection, of whicli about 4500 are skins and 
1900 are set up^ besides some 800 that are exotic. The series 
of colour- variations — albinisms and other kinds — is very rich. 
The skins are excellently made, carefully arranged, and fully 
labelled. HerrVallon gives a long list of the more remark- 
able specimens, amongst which, we notice, are nine examples 
of Buteo desertorum and three of B. ferox, one of Falco island- 
icus from Venetia, also specimens of Dendrocopus lilfordi, 
Turdus fuscatus, Budytes ciireolus, Emberiza aureola, E. 
rustica, and E. pusilla, with many other Italian rarities. The 
Count has, moreover, a considerable series of hybrids. 
39. Winge on the Birds of the Danish Lighthouses, 1900. 
[Fuglene ved de dauske Fyr i 1900. 18de Aarsberetning om danske 
Fugle. Ved Herluf Winge. Vidensk. Medd. fra d. naturh. Foren. i 
Kbhvn. 1901, pp. 67-128.] 
From the eighteenth report on the birds taken and observed 
at the Danish Lighthouses (see Ibis, 1901, p. 150) we learn that 
700 specimens were received in the year 1900 at the Zoolo- 
gical Musemn, Copenhagen, from 33 lighthouses. They are 
referred to 53 species. An example of the slender-billed 
form of the Nutcracker [Nucifraga caryocatactesleptorhynchus) 
was taken at the Hestehoved Station on Oct. 30th. 
The total number of species as yet registered in these lists 
is 144. 
X. — Letters, Extracts, Notices, ^c. 
We have received the following letters since our last 
issue : — 
Sirs, — Amongst the many interesting spring displays of 
the Anatid(B, that of the male Baer's Duck, which I have 
studied in the specimens living in the Gardens of the 
Zoological Society of London, is somewhat remarkable. He 
commences to '' draw '' about the same time as the Scaup 
Duck, to which the species is evidently closely allied, and 
as regards his nuptial courtship is similar in many respects 
to that bird. 
