|I purchased a pine shrub that had a label on it|
|Sorry about your plant, but glad the roofers will replace it. There are two plants commonly called Bird's Nest:
Bird's Nest Spruce (Picea abies 'Nidiformis') is a small to medium-sized shrub with a broad rounded and flat-topped habit. A slight depression in the center along with the symmetrical shape gives rise to the cultivar name. Size: 3-6' high x twice as wide, with a very slow growth rate.
Tsuga canadensis 'Jeddeloh' - a dwarf shrub form to 3' tall by 5' wide, with a subtle depression in the center, and an alternative to Picea abies 'Nidiformis'.
Best wishes with your new plant!