Need help identifying then fruit...

[Beta_Grumm]

Hello.
I was wondering if any one would have any suggestions as to what this may be:
Thank you.

[thanrose]

Prunus serotina, I think. Wild black cherry. Did you see it blossom? Check out google images of the bark and the leaves for comparison. Also the fruit will have a single stone in each.

[lilypotter]

I don't have an idea of exactly what the fruit is but surely i say this particular fruit is not wild black berry fruit.

[Silver surfer]

I am not sure if you have this in Moscow.... but it resembles Chokecherry.
Prunus virginiana melanocarpa.

Prunus virginiana melanocarpa berry - Google Images

http://en.wikipedia.org/wiki/Chokecherry

Prunus serotina cannot be ruled out either. It has shiny leaves.

http://en.wikipedia.org/wiki/Prunus_serotina