Welcome to DU!
The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards.
Join the community:
Create a free account
Support DU (and get rid of ads!):
Become a Star Member
Latest Breaking News
Editorials & Other Articles
General Discussion
The DU Lounge
All Forums
Issue Forums
Culture Forums
Alliance Forums
Region Forums
Support Forums
Help & Search
Preening Trumpeter Swan (Cygnus buccinator) [View all]
Helene Hoffman
The swans spend significant time preening, rubbing their bills in the oil-secreting uropygial gland near the base of the tail, then distributing the oil over the feathers to waterproof them.
4 replies
= new reply since forum marked as read
= new reply since forum marked as read