I noticed the red of the Partridge Berries first then the shape and color of the mushrooms as we walked the Eagle Lake Trail at Acadia N.P.
Tricholoma equestre–aka-Tricholoma flavovirens-aka-Man on Horseback. The ID is via iNaturalist and of course the images they show are of a fresh mushroom so iffy, I guess. And, of course, without a spore print certainty is a challenge.
Although obviously past its prime, I like the shape and color of the mushroom with its berry bonnet. I read that it was formerly considered edible but is hazardous to eat now.