I found a pigeon egg in bottom of my garden,

Question

I discovered a pigeon egg the other day in the bottom of my garden it was cold when I picked it up , but I could see a nest in my neighbour's garden and a bird sitting in it. I'm not sure how long the egg has been in my garden but today it feels warm, is there likely to be a living embryo in there now?

Suebg1 · Answer

I could suggest that you darken the room you are in and then place a bright light (i.e.) reading lamp behind the 
egg. Have look into the egg. If you see the shape of an embryo or red veins then you could have a living embryo.