BIRDS OF THE BEISTOL DISTRICT. 



379 



L. fuscus - Lesser Black-backed Gull - Indigenous - occasional 

 (Avon and Severn. 



L. argentatus - Herring Gull - Indigenous - frequent 

 (Avon and Severn.) 



L. marinus - Great Black-backed Gull - Indigenous - occasional 

 (Portishead; Avonmouth.) 



Genus. Lestris. 

 L. Eicbardsonii - Eicbardson's Skua - Winter visitor 

 (Once shot at Clevedon. Kev. M. K.) 



Genus. Thalassid/roma. 



T. pelagica - Storm Petrel 

 (Portishead.) 



Indigenous 



NQTy rare 



rare 



