Sea birds called the Gannet are the best diving birds. these birds can dive as deep as 30 metre. These birds have 2 metre wingspan which converge into streamlined aerodynamic shape which give them a perfect dive. As they dive from high altitudes with aerodynamic body, they have very high speed which results in tremendous force acting upon their head. This enormous can break any bird's skull. To...
Shearwaters come to islands and coastal cliffs only to breed. They are nocturnal at the colonial breeding sites, preferring moonless nights to minimize predation. They nest in burrows and often give eerie contact calls on their night-time visits. They lay a single white egg.
They feed on fish, squid, and similar oceanic food. Some will follow fishing boats to take scraps, commonly the sooty shearwater; these species also commonly follow whales to feed on fish disturbed by them. Their primary feeding technique is diving, with some species diving to depths of 70 m (230 ft).