1 50 GREAT BLACK-HEADED GULL. 



MEDITERRANEAN BLACK-HEADED 



GULL. 



PLATE CCXXII*. FIGURE I. 



Larus melanocephalus, NATTERER. 



r I iHE nest is made of small twigs. 



The eggs, from two to three in number, are 

 of a pale stone-colour. 



GREAT BLACK-HEADED GULL. 



PLATE CCXXII*. FIGURE II. 

 Larus icthyaitus, PALLAS. 



rjlHE bare sand serves as a nest. 



The eggs, three in number, are of a dull 

 yellowish stone-colour, streaked and blotted with black 

 and brown. 



