Ducks got eyelids!

[QuietOne]

I've seen them on geese, too, just haven't managed to get a photo.

[OWLP]

All birds have them.

[Michaelaw]

I have seen them on geese, perfect round white patches when their eyes are closed. I always figured it was to fool predators into thinking they're awake but that's just my guess

[JAS_Photo]

Don't they have an inner protective eyelid? I gotta go google this.

[Michaelaw]

These are the patches I'm referring to. It kind of makes them look awake when they sleep

[JAS_Photo]

Sorry, Michael still can not see any of your photos. Her we go though- birds have three eyelids.
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