PI . 63 



V 





nr '^^Sf^ 



BLACK-ri FADED GULL. 



GREAT B LACK- HD. GULL . 



BLACK-HEADED CULL 





<^'"^ 



ADRIATIC CULL. 



GREAT BLACK-HD. GULL 





ADRIATIC GULL . 



HA A/ HA fir L/TH . 



