542 ORNI THOLOGICAL 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- 
Hagles 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-Hagles 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 haliaétus) ; 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 
