Trees have buds throughout the winter, but with the coming of spring, buds are growing larger and more noticeable, as if swelling with pregnancy.
This is not a tree I visit frequently, so I don't know if the buds look different now than they did in winter, but here is one of many trees whose buds caught my attention.
This tree is on Hutton Street, near 17th Street. There were two small trees, planted on the sidewalk, so they are cultivated trees. They had two buds together on the ends of the twigs, plus alternate side buds.