542 ORNITHOLOGICAL NOTES. 



him, both having the pale yellow plumage and the white tail 

 indicative of great age. 



On my attempting to cross the open they rose, and at my 

 shot the female sank towards the water, but flew over it to 

 a high tree near by, about halfway up which it settled ; the 

 male, however, kept rising into higher regions, circling round 

 the place where its mate had disappeared, and in a few 

 minutes disappeared in a southerly direction. I then went 

 after the wounded bird, and three times found it sitting on 

 the ground, but never succeeded in getting near enough to 

 kill it with shot. 



It is very exceptional to meet with an old pair of Sea- 

 Eagles in April at any other place than the immediate neigh- 

 bourhood of their nest, and they most certainly no longer 

 breed in the auen of the Danube between Vienna and Press- 

 burg ; my astonishment was therefore all the greater when 

 on the 16th of April I several times saw three different 

 Sea-Eagles at the same spot, either sitting on the bank of 

 the arms of the river or flying about hunting and fishing. 

 With the help of a field-glass I could perfectly well make 

 out that these were distinct individuals, for, in the first place, 

 they were of different sizes, and, in the second, they varied 

 in their plumage, one having the full adult feathering, but 

 not so pale as that of the pair that I saw on the 10th, 

 while the others were younger one being in the tawny 

 transition dress, the other in the dark brown garb of the 

 very young bird. 



This year the auen of the Danube were also unusually rich 

 in Ospreys (Pandion haliaetus) ; but they were all immature 

 birds that were not yet breeding, for I never found a nest of 

 this species in that district. The first two I observed on 

 March 14th, and on the 6th, and especially on the 16th, of 

 April I saw many of them flying about fishing. 



On March 14th I noticed a Montagu's Harrier (Circus 



