1 68 WILSON'S PETREL. 



WILSON'S PETREL. 



PLATE CCXXXII. FIGURE II. 



Procellaria Wilsoni, JENYNS. 



Thalassidroma Wilsoni, TEMMINCK. 



rilHESE birds appear to build in numbers, about 



the beginning of June, on sand islands, in which 

 they burrow small holes to the depth of two feet or 

 two and a half: the necessary bedding provided is a 

 little grass. 



The egg is a single one, and its colour white. 



The young are able to go to sea by the begin- 

 ning of August. 



The egg figured in the plate was lent to me by 

 the Rev. H. B. Tristram, Curate of Castle Eden, 

 Durham. He had it from Newfoundland. 



