Vireo Solitarius, also known as the Blue-headed Vireo or the Solitary Vireo, is a small bird that is native to North America. This species of bird is known for its distinctive blue head and grayish-green body, making it easy to identify. However, there are many synonyms for this bird's name, which can be confusing. Some of the other names it goes by include the Northern Solitary Vireo, the Blue-headed Green Vireo, the Blue-headed Chatterer, and the Blue-headed Flycatcher. Despite the different names, this bird is commonly found in mixed forests and is known for its beautiful songs that can be heard throughout the spring and summer months.