their body juices. Others just sat with destended abdomens digesting 
their meal. 
I can find no reference to this phenomenon of alated termites 
all alighting in one confined area for the purpose of mass mating. 
G.R. Cunningham van Someren, Bird Room, 
National Museum, NAIROBI 
UNUSUAL AG&REOATIONS OF FISH EAGLES 
Large numbers of Pish Eagles, Ealiaetus vocif er > can always be 
seen on the shores of Lake Malawi. Normally they are observed 
singly or in pairs, most commonly in regions where large trees 
exist close to the water’s edge. They can also be seen several 
kilometres from the shore congregating around fishing vessels 
where they recover fish from the surface. The majority of these 
fish are small and can be eaten on the wing. Up to 23 birds have 
been observed scavenging together in this manner, often in compet- 
ition with Grey-headed Gulls, Larus oirrocenhalus . and the White- 
winged Black Tern, Chlidonias leucoptera . Pish Eagles also gather 
to scavenge from large numbers of White— necked Cormorants, 
Phalacro corax carbo fishing in rafts of up to 3^000 individuals. 
Aggregations of Fish Eagles other than for the purpose of 
feeding have also been observed. On several occasions large 
groups of Pish Eagles have been seen on the shoreline, washing in 
the water and sitting in nearby trees. One such group numbering 
15 adults and 18 immatures was observed in two trees olose to the 
shoreline within the territory of an established nesting pair, 
although the nest was not in use at the time. No aggressive inter- 
actions were observed, whereas aggression between neighbouring pairs 
and between pairs and a single intruder are often observed. 
„ _ _ * ™ ^ 
BREEDING OP IMMATURE WHITE-NECKED CORMORANTS 
OH BOADZULU ISLAND. LAKE MALAWI 
During August and September 1979 a number of immature White- 
necked Cormorants, Phalacroc orax carbo . were observed breeding and 
raising young in a colony of about 4,800 birds. The immature bird 
is wholly white on the breast and abdomen and observations suggest 
that the moult to adult plumage starts after about one year. 
Successful breeding was observed in pairs consisting of one adult 
plumaged bird and one immature and also pairs of immature birds. 
The majority of immature birds involved showed some degree of adult 
plumage on the breast and abdomen, although some wholly white birds 
were recorded. The total number involved was about one per cent 
136 
