I think those red berries are some kind of viburnum, which would mean that they are edible. I didn't go for a definite identification, so I didn't try them. Sorry, I don't know what they taste like. Sour, probably. <img src="https://e.deviantart.net/emoticons/s/smile.gif" width="15" height="15" alt=":-)" title=":-) (Smile)"/>