Usually, watchful waiting is an outpatient process and may have a duration of months or years. In contrast, medical observation is usually an inpatient process, often involving frequent or even continuous monitoring and may have a duration of hours or days. 1 Medical uses.
Shearwaters earned their name by their ability to cut - or shear - the water with their wings, although until recently they were known as 'muttonbirds'. This name was given to them by early European settlers, who killed the birds for food and found that their flesh tasted like mutton.
Salt glands in Marine birds allow them to drink salt water and expel the excess salt from their bodies. Salt glands concentrate salt from blood in an area close to the sinuses, the excess salt is excreted by the bird through sneezing.Some marine birds release the excess salt directly from salt glands.arine birds are categorized by their adaptation to marine settings. Many marine birds are able to dive into the water to capture prey and some birds, like penguins, are able to swim into deeper water, they also do not get wet when they enter the water. Birds have a preening gland that secretes waxes and fats.