Another woody plant to check out is the common flowering quince Chaenomeles speciosa. http://www.hort.uconn.edu/plants/detail.php?pid=104

With out more details e.g. flowers, fruits & base of the bush, I can’t be for certain of its ID. Its branches look similar to something in the willow group (Salix). Check out the link below for a type of willow, click on images to enlarge. Again, I’m not saying this is yours. Maybe you could give us an update with its winter buds, if it does not giving any more clue in the summer. Best wishes! https://gobotany.newenglandwild.org/species/salix/eriocephala/?key=dichotomous