Who are these Cory’s shearwaters?
This creates a food source for many marine animals, like the Cory’s shearwater. This species has a complex system of sounds. The sounds are only produced during the breeding season, in their breeding colonies. Males only produce high-pitched tones while the females produce more deep tones. This sounds have a very particular tone that can be heard specially at night time close to the cliffs were they nest.
The genus name Calonectris comes from the classical Greek words kalos, meaning “Good” and nectris meaning “swimmer“. And, as might be expected, the Cory’s shearwater is a great swimmer! The species has webbed feet as well as long and straight wings that are adapted to allow the birds to use the updrafts of wind on the waves to “shear” over the water’s surface (hence the name “shearwater”). But, not only the wings are perfectly adapted to an oceanic lifestyle, the species is also adapted to drink seawater due to the existence of highly developed nasal tubes. They have desalination glands that extract and dispose of the salt. This is reason why this birds can spend months in the ocean without coming back to land. They also have an unusually strong sense of smell. This is very handy, since they can find their food over large ocean surfaces and also relocate their colonies.
dolphins or even other species like tunas are very often seen around the Azores, and also on our whale watching tours, all feeding together in a ‘feeding area’ were the dolphins surround the school of fish forcing them to ‘make’ a ball and other species including Cory’s profit of this feast diving directly into the ball of fish.
the Scopoli’s shearwater, with the different being about 46 percent.