370 Herr E. Hartert on the 



that it hardly leaves the breediiif^-district at all, and may 

 be seen there all the year round. It breeds, in spite of snow 

 and ice, early in the year. I found a nest with three half- 

 feathered young birds on the 19th of April, and a clutch of 

 nearly fresh eggs on the 21st of March. The nest was in a 

 fir about 15 feet high, the number of eggs three, as usual. 

 The female did not leave the nest until 1 knocked against the 

 tree. The species is not at all rare in some of the dense 

 fir-forests, but the nest is extremely difficult to find, chiefly 

 on account of the long and severe winters. I have seen 

 snow lying about four feet deep at the end of March, and 

 even in 188-1, when I found the eggs, I had often to walk 

 for hours through half- frozen snow and water. There is a 

 good series of Niicifraga caryocatactes in Momeyer's collec- 

 tion. The colour of Prussian specimens is rather light. 

 The moult takes place in June and July. 



NUCIFRAGA CARYOCATACTES MACRORHYNCHA (Brclim) . 



The Slender-billed Nutcracker is merely a bird of passage 

 in East Prussia. It is common in some years, but not 

 seen in others. 



Garrulus glandarius (L.). 



Pica pica (L.). 



Both not rare, except in some districts. 



CORVUS CORAX, L. 



Not rare, but not in large numbers. More plentiful 

 in winter. 



CoRVUS FRUGILEGUS, L. 



There are not many rookeries in East Prussia. 



CoRVUS CORNIX, L. 



The Hooded Crow is the common Crow, and is a stationary 

 bird all the year round. 



(It has been stated twice (J. f. O. 1884, p. 94, and some 

 years later in the ' Eeobachtungstations-Berichte ' in the 

 same Journal) that Coi'vus cor one breeds in East Prussia, but 

 these statements are incorrect. The Carrion-Crow is commor 



