Question:
Sea birds spend a considerable amount of time over the sea
particularly those that migrate. My question is " Where do sea birds
get their freshwater for survival. Can they turn salt water into
fresh water?"
Replies:
There is a family of migratory sea birds called "tubenoses" that excrete salt
out of a gland at the base of the bill. An albatross is an example. This is
necessary for the reason you point out; they drink saltwater and excrete the
salt out their "nose". Some penguins also do this, and I have personally seen a
penguin "sneezing" salt crystals out of their "nose" (base of the beak) every
few minutes.
Paul B.
Sea birds do drink salt water! The salt is moved through their blood stream and
then excreted in salt glands above their eyes. The salty fluid comes out of their
nostrils and then runs down grooves in their bill. When the drops get larger the
bird will shake its head and return the salt to the ocean.
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