Having finished work and actually watched the video, I am a little bit jealous. I have a lot of the same plants around here but their seasons are over, and the birds get to most of them before I do. Blackcap raspberry and thimbleberry are probably my favorite fruits and I have to patrol around every day to catch them before they're gone. Red huckleberry, serviceberry and wild strawberry seems more common if I drive about an hour inland (I live in the coast).
I haven't found that watermelon berry yet but what I do have out today is a lot of
Oregon grape. They're pretty sour raw but can be used to make processed foods like jam. I would let you know how that tastes, but I haven't quite gotten the hang of jam yet; my last attempt at Oregon grape jam produced a very large hard candy at the bottom of a jam jar.
As a Canadian I have to token protest calling "Sambucus
canadensis" an "American elderberry". 😉I don't think it's usually found on the west coast and while I've never been lucky enough to see any wild elderberries I think blue elderberry is more common out here? I can't really tell them apart though so it's possible this one was an escapee.