112 



WHITE-AVINGED BLACK TERN. 



SILVER-WINGED BLACK TERN. 



PLATE CCXIX. 



Sterna leucopieva, .... Meteb. 



The eggs of this species are three or four in number, 

 with, many greyish spots, and some larger blackish red 

 ones, the ground colour being dull yellowish olive. 

 They are of a rotund form. 



The male and female birds sit on them in turn, and 

 shew much anxiety for their safety, flying at and about 

 all intruders. 



The figure on the plate is from an e^^ forwarded by 

 J. R. De Capel Wise, Esq., of Lincoln College, Oxford. 



