356 Herr E. Hartert o?i the 



and inconveniently scattered over many numbers of the 

 periodical. Since its publication a few other observers have 

 visited that country, specimens of some of the interesting 

 species have reached the Berlin Museum, notes have been 

 published here and there in German periodicals, and I have 

 received from time to time notes from reliable friends, as 

 well as eggs and specimens in the flesh, especially from my 

 friend the Royal Forester Wels. Many of my notes of 1887 

 must therefore now be extended or altered. Lastly, I may 

 mention that during my stay in East Prussia I not only 

 " observed " birds, but carefully collected both skins and 

 eggs, from those of the common Finches to those of the rare 

 Owls and Eagles ; that I liave compared these carefully 

 with specimens from other parts of Germany; and that 

 while most of the skins are in the large collection of the 

 late E. F. von Homeyer, most of the eggs remain in my 

 own possession. 



The following list contains the species that at present 

 undoubtedly inhabit East Prussia, or certainly occur there 

 as migrants. 



AeDON PHILOMELA (Bcchst.). 



The large Eastern Nightingale is very common in East 

 Prussia wherever it finds leafy woods with plenty of under- 

 growth, gardens, or swampy tracts and forests of Ahius 

 glutinosa. It is absent from the pine-wood districts of the 

 south-east. 



[Aedon luscinia, the Common Nightingale, does not occur 

 east of the Vistula. In some cases it has been recorded 

 erroneously.) 



The eggs of the Eastern Nightingale are, as a rule, some- 

 what larger than those of the smaller form, but many are 

 uudistinguishable, and I have come across eggs of A. luscinia 

 that exceed in size any I have seen of A. philomela. 



I do not know whether a series of A. philomela from 

 East Prussia and Poland has ever been carefully compared 

 with specimens from Southern Hungary. I am not at all 

 sure that they all belong to one subspecies. 



