Hi! I'm getting a Pekin later on this year, and I'm looking for a dog house for it to be its little home in the fully inclosed pen that I will build for it soon. But, I'm not sure what size dog house I should get. I know that it needs to be big enough for it to fully stretch it's wings, but I haven't been able to find out how long their wings accually are! If someone could please tell me, and maybe show some dog houses they have used for their ducks and have worked well, that would be so helpful! Thank you so much!