44 



THE ZOOLOGIST. 



tides, from Aberlady Bay to Eyebroughty, takes place on a 

 straight course from Gullane Point to the west end of Eye- 

 broughty. To-day Oystercatchers only were observed. They 

 were heard repeating the "pik" call for some time before they 

 were seen, and the sounds came along the mainland coast which 



£YtBftOUGrHTY ^ 



Sketch-map of the Coast. Scale: one knot to the inch. 



the birds proved to be following. They passed the " sill " and 

 were going further eastward, when their calls were answered by 

 a single clear trill coming from a bird of the stock resident on 

 Eyebroughty. The flock turned immediately and abruptly, and 

 flew in silence in the direction of the sound, their safe arrival 

 being indicated by a fog-subdued whistling coming from the 

 same region. 



On the return journey, when the visibility range had risen 

 to about a thousand yards, the birds left Eyebroughty in 

 successive bands which approached the mainland westward of 

 the " sill," and turned right-handedly to coast instead of following 



