Gestation for duck eggs?

How long does a duck usually sit on her eggs until they hatch?

Well... I got some hatching eggs from one of my friends. He said they were duck but they were brown and I never seen a brown ...

me and my friends were at this river place 2dae with tons of ducks and we found a duckling and 2 speckled eggs beside it the ...

My parakeets humped and im wundering how long untill it lays an egg? We have naesting box in the cage.

I had a dozen or so eggs waitin to get set on , I came ouy and they were all sucked from one end.

my parakeet has laid an egg and it fell and slightly cracked can it still hach?

What's a group of ducks called? Is it a flock or something else?

My bird had 4 eggs.when will she have more eggs?how long does it take to lay more?

how much time does it take for a parakeet eggs to hatch ?????

My parrakeet has not laid any eggs in her nest box she has been like this for 2 or 3 days,she stays in the box most time ,is ...