not go into any details concerning them in this place. 

 I have seen hundreds of the eggs of this bird at various 

 times in Leadenhall Market, received there from the 

 marshes of the Netherlands with those of many other 

 species. 



In common with all the other European members of 

 the marsh or freshwater-Tern family, this species lives 

 principally upon various insects and leeches ; tadpoles 

 are also favourite morsels. I have met with the Black 

 Tern in small numbers in various parts of the Mediter- 

 ranean, and also in Switzerland, and found one pair, 

 with their nest and eggs, in close vicinity to a colony of 

 Common Terns on an islet of one of the brackish 

 lagoons of Sardinia. In my experience this bird is a 

 somewhat scarce vernal migrant to the Ionian Islands, 

 where it makes no stay, nor did I find it breeding on the 

 mainland opposite to these islands, although there was 

 no lack of apparently very suitable localities in Epirus 

 and Albania. Mr. H. Saunders states that the winter 

 range of this Tern is scarcely known to extend beyond 

 North Africa, Egypt, and Palestine ; but that it is 

 of tolerably general diffusion in the breeding-season 

 throughout Europe from Southern Sweden southwards. 



