924 Col, R. Meinertzliageii on the Altitude [Ibis, 



The saner correspondents gave me the followinu- details: — 



In addition to the above, Capt. Wynne, writing to me 

 in December 1918 notes the remarkable lack ot" bird-life 

 at over 1000 feet wlien observing from an aeroplane, 

 though lie was constantly on the look-out for ))irds when 

 flying. He only met birds at over 1000 feet on two occasions, 

 and knew of two cases where Geese had been seen at GOOO feet 

 in France by our pilots, but could not give further detail. 



The following information was given to me by two officers 

 who flew for two years in Mesopotamia. Swifts were seen 

 at 6000 feet over Mosul in July, hut were not on passage. 

 White Storks were seen migrating in April at 4200 feet over 

 Baghdad, and Geese and Duck were frequently met with soon 

 after dawn passing north on spring migration, but usually 

 between 2000 and 3000 feet. 



