A form of hypersensitivity pneumonitis caused by exposure to bird droppings or feathers.

plural of feathered oof-bird

(dated, idiomatic, British slang) Any large, plentiful source or supplier of money.

(computing) An informal discussion group, typically at a conference, based on a shared interest and without any fixed agenda.

plural of bird's nest soup

A Chinese delicacy made from edible bird's nests prized for its smooth texture and delicate flavor.

(informal) Thoroughly happy.

Alternative spelling of birdsfoot trefoil

plural of bird's-foot trefoil

plural of important bird area