510 Herr E. Hartert on the 



maculata, and the other older names are more or less 

 doubtful^ and that we do best to accept Brehm's term, which 

 doubtless refers to the small North-German form. 



This Eagle is found everywhere in the greater forests of 

 East Prussia, and is one of the commonest birds of prey. 



It arrives at the beginning of April. Eggs are laid in 

 East Prussia from the first days of May until the middle of 

 the month, and sometimes later. The number of eggs is 

 mostly two, but very often one only is found. It has been 

 stated that this bird occasionally lays three eggs, but I have 

 never found more than two. 



The large nest is placed on different kinds of trees, on pines 

 and firs as well as on oaks and other foliaged trees, generally 

 not very high above the ground. 



Aquila clanga, Pall. 



The Larger Spotted Eagle is of very rare occurrence in East 

 Prussia, but specimens have been procured from time to time, 

 and it breeds exceptionally in the province. 



ClKCAETUS GALLICUS (Gm.). 



This bird is rare in East Prussia, but it breeds regularly 

 in different parts of the province, especially in the south- 

 eastern district, where lakes abound. 



ACCIPITER NISUS (L.). 



A permanent resident, 



ASTUR PALUMBARIUS (L.). 



Found during the whole year, but less common than the 

 last species. 



Circus swainsoni. Smith. 



Often shot on migration in autumn ; in moat years very 

 rare, but rather numerous iu 1890 and less so in 1891. 



Circus cyaneus (L.). 



More numerous, and especially in September. Breeds in 

 small numbers. 



Circus cineraceus (Mont.) . 



This species is rather more frequently met with than Circus 



