Red flowering currant (Ribes sanguineum)

The shrub you're referring to is likely the Red Flowering Currant (Ribes sanguineum). This deciduous plant forms a rounded, bushy shape when grown in full sun. In spring through summer, it produces numerous small blooms ranging from pinkish-red to pale-pink, which are highly attractive to hummingbirds, bees, and butterflies. Additionally, in mid-summer, the shrub yields blue-black berries that appeal to various wildlife.