Did I find a duck egg?

[gdcfarm15]

Hello there. We are new to chickens. I have 2 hens. I found an egg laying next to the gate in the wide open last week. It was somewhat big and an off white-light brown. Yesterday and today I've found a smaller darker brown egg in a nest of straw that one of my hens have made. I have 2 hens and they also run with my female duck. Is the first egg I found a duck egg? Like I said the other 2 eggs do not look like that one nor the same size. They are all around 20 weeks of age.

 

[GitaBooks]

Congrats on the eggs!

Ducks and chickens both start laying at around this age, and ducks eggs do tend to be larger. You can check what breed they are and see what size and color the eggs are suppose to be, for both the duck and the chickens.

Best of luck with your flock!