Michael sent these two pics and a narrative to go with:
"This egg was less than a foot from the shoulder of I70, beside which I stopped to piddle, and came across this. It was laid by some bird that just drops its egg in this grassy medium, and then hatches it there.....I have seen several birds that do this in PA. Seems more dangerous than it probably really is, given the probability of any one car/person stopping at any one point on a long road. I was charmed."