Bird migration as they ride the "roaring forties" outside the breeding season. The tubenoses spread widely over large areas of open ocean, but congregate when food becomes available. Many are also among the longest-distance migrants; sooty shearwaters "Puffinus griseus" nesting on the Falkland Islands migrate between the breeding colony and the North Atlantic Ocean off Norway. Some Manx shearwaters "Puffinus puffinus" do this same journey in reverse. As they are long-lived birds, they may cover enormous distances during their lives; one record-breaking Manx shearwater is calculated to have flown 8 million km (5 million miles) during its over-50 year lifespan. Some large
Persian shearwater 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, the northern subspecies ranges from the southern Red Sea, the Gulf of Aden and the Somali coast across the south of the Arabian Peninsula to the Gulf of Oman, Pakistan and western India. The southern subspecies stays in the area around the Comoros and the Tanzanian and northern Mozambican coast. The nominate subspecies is thought to number in the thousands of pairs on the Khuriya Muriya Islands