No snap dragons, Liz? My sister-in-law has a blue/violet clematis that climbs a trellis in front of her home. The flowers are 5 - 8" across - a spectacular June display. And every year a sparrow makes her nest in it. From atop a chair you can see the babies all snuggled in the nest. By the time they are ready to fly, they are as big as their mother. Really funny to see these "babies" begging for food and jostling for position. Even funnier to see the frustrated tomcat sitting in the chair glaring at lunch just out of reach.