Porthgwarra to Pordenack Point heath, and for being of considerable ornithological interest; especially for passage migrants. The southern section, Tol Pedn or Gwennap Head, in particular is favoured by birdwatchers and many travel the length and breadth of Britain to track rare seabirds. The headland is renowned for its relative abundance of passing marine bird species with many common species such as northern gannet ("Morus bassanus"), Manx shearwater ("Puffinus puffinus"), common guillemot, ("Uria aalge"), razorbill ("Alca torda"), northern fulmar ("Fulmarus glacialis"), shag ("Phalacrocorax aristotelis") and cormorant ("Phalacrocorax carbo"). Forty-five breeding species have been recorded including the red-billed choughs ("Pyrrhocorax pyrrhocorax") which have recently been
Persian shearwater off Oman and Socotra, Yemen, while "P. p. temptator" has been estimated to number fewer than 500 pairs on Moheli Island in the Comoros (reviewed by Brooke 2004). It is thought likely that more breeding colonies lie undiscovered elsewhere in the northern Indian Ocean (Onley and Scofield 2007), thus the total population probably includes more than 10,000 mature individuals. The population trend is believed to be downwards. Persian shearwater The Persian shearwater ("Puffinus persicus") is a seabird in the family Procellariidae formerly lumped in with Audubon's shearwater ("Puffinus lherminieri"). There are two listed subspecies of the Persian shearwater: After breeding,