I have seen three different EIDERS practice this bit of surgery myself, and have heard of at least a dozen more, all of the same species, that were seen in fresh ponds or rivers, dipping their heads under water repeatedly.
"A Little Brother to the Bear and other Animal Stories"
William Long
The keen-eyed critic will interfere here and say I was mistaken; for EIDERS are salt-water ducks that haunt only the open sea and are supposed never to enter fresh water, not even to breed.
"A Little Brother to the Bear and other Animal Stories"
William Long
You can make fine omelet from the eggs of EIDERS, gulls, puffins and cormorants.
"Grenfell: Knight-Errant of the North"
Fullerton Waldo