Flamingos spend about 15% to 30% of their time during the day preening. This is a large percentage compared to waterfowl, which preen only about 10% of the time. Flamingos preen with their bills. An oil gland near the base of the tail secretes oil that the flamingo distributes throughout its feathers.

Here is a Lesser Flamingo preening at Sylvan Heights Bird Park.

Lesser Flamingo Grooming