390 
SAVAGE SUDAN 
In midwinter, I do not recollect seeing a single tern on this 
coast, though the gulls then carried on “ business as usual.” 
The terns had clearly sought hibernal attractions elsewhere. 
Amidst the feathered crowds assembled alongshore, one 
notices waders—curlews, whimbrels, ruffs, redshanks, dunlins, 
ring-plovers, 1 sandpipers, etc.—including, of course, some of my 
favourite “globe-spanner” class. These, however, I did not 
trouble to identify, since a lifetime’s study of these wanderers 
White-eyed Gull {Larus leucophthalmus ') —Adult. 
has convinced me that merely casual observations of brief 
duration help hardly at all. Nothing short of patient study, 
prolonged over continuous periods, avails to solve such world¬ 
wide problems as these birds present, and for that there was 
no opportunity. An analogous case also occurred, as follows. 
Here, on the Red Sea coast, we encountered (for the first time 
in my experience) certain egret-like birds known as “ reef- 
herons.” Among the few specimens shot, some were spotless 
white, some deep-grey or of a dull sap-green hue all over, while 
1 Lynes found the Kentish plover {ALgialitis cantiana) nesting near Port 
Sudan—three eggs, hard-sat, April 14th, 1914. 
