360 Herr E. Hartert on the 



Hungan') cannot be mistaken for that of L. i^cevio, as it is 

 composed of two syllables, while that of the latter is con- 

 tinued mnch longer and in one syllable. The song of L. Im- 

 cin hides was common — though not heard by many, and 

 declared to be the voice of a large grasshopper by one person 

 (it was May !) — among the endless reeds of the Hausag, in 

 Hungary. Since I had not heard the note of any Locustella 

 during several years, I at first believed the songster to be 

 L. nd'v'ia, but from the nature of the locality I knew that that 

 was almost impossible. The song of L. luscimoldes, however, 

 can without difficulty be distinguished from that of L. ncevia 

 by being shorter, deeper, and not so loud and shrill. 



The occurrence of L. luscinioides in East Prussia has 

 recently been announced at a meeting of the German Ornitho- 

 logical Society in Berlin, but cannot be taken for granted until 

 some ornithologist has verified the statement by examining the 

 bird, if a specimen has been procured at all. 



ACROCEPHALUS AQUATICUS (Gm.). 



I have only once shot a specimen near the Frische HafP 

 and observed it twice in August. It is probably less rare 

 than it is believed to be. 



AcRocEPHALUs scHCENOB.EXus, L. {=phragmitis) . 

 Common. Arrives at the end of April. The nest is 

 always placed close to, but not exactly on, the ground. 



AcROCEPHALUS STREPERUS (Vicill,). 



Common in suitable places. 



AcROCEPHALUs ARuxDiXACEUs (L.) { = turdoides) . 



The Great Reed Warbler is very common where Arundo 

 phragmites abounds. The nest is usually placed among the 

 reeds, but I found it occasionally fixed to the twigs of willows, 

 and a case is known where it Tvas high up in a birch tree. A 

 favourite food of the Great Reed AVarbler is reed-beetles 

 {Donacia phragmitis, D. sericea, and allied species), which 

 are frequently found in its stomach. 



ACROCEPHALUS PALUSTRIS (Bcchst.) . 



y^it rare in suitable localities, biit not very numerous. 



