Me again: Our dog is a 50lb lab mix. She found the egg and brought it me. We are located in West-Central Virginia foothills of the Blue Ridge Mtns, if that's relevant.
Hi, lovely pic of your dog but can't really help re the egg as you have come to a forum in the UK! Maybe Cornell Bird site could ID your egg?
2013 photos & vids here
eff37 on Flickr
Hi SlickVic, you probably don't realise that you've posted on what is a UK based site. So it's unlikely we will be able to be of much help.
Having said that the egg looks pretty large. Do you get Wild Turkeys where you live. I found a photo of a nest of Wild Turkey eggs which looks kinda similar.
https://www.flickr.com/photos/drphotomoto/4636800077
Just a guess. You'd probably do better to consult one of your local organisations like the Audubon Society or CornellLabs.
Gorgeous dog btw.
____________________________________________________________________
Tony
My Flickr Photostream