When it comes to finding food and shelter on the vast open ocean, some petrels and related seabirds simply follow their noses.
Petrels are pelagic birds, which means they spend most of their time flying over open water, only venturing
onto land to raise young. Along with albatrosses and shearwaters, petrels come from an order of birds known
as “tubenoses” because of their prominent, tube-shaped nostrils. Birds in this order have some of the largest
olfactory bulbs − the portion of the brain involved in smelling − in the avian world.