The American Elderberry produces flower clusters which are attractive to bees and butterfiles. Game birds, squirrels and other rodents, and several kinds of browsers also feed on the fruit or foliage of elderberry. Bears love to eat the elderberry fruits while deer, elk, and moose browse on the stems and foliage.
The elderberries are important sources of summer food for many kinds of songbirds. For example, the western bluebird, indigo bunting, common house finch, red-shafted flicker, ash-throated flycatcher, black-headed grosbeak, scrub jay, Stellar jay, ruby-crowned kinglet, mockingbird, red-breasted nuthatch, Bullock’s oriole, hooded oriole, song sparrow, white-crowned sparrow, western tanager, California thrasher, russet-backed thrush, brown towhee, Audubon warbler, cedar waxwing, Lewis and Nuttall's woodpecker, wren-tit, grouse, pheasant, and pigeons all eat elderberries.