According to the Secretary of the Commonwealth of Massachusetts: The Black-Capped Chickadee (Penthestes atricapillus) was adopted as the state bird by the Massachusetts Legislature on March 21, 1941. It is also known as the titmouse, tomtit, and the dickybird, and it is one of the most familiar of the North American birds. It is from four to five inches in size, its tail accounting for nearly half its length. The general coloring is ashy-grey, the back having a brownish tinge; the crown, nape, chin, and throat are black, and the cheeks white. It nests in a stump, tree, or fence post close to the ground, and broods twice a year. It is a cheerful bird and has a pleasing call: "Chick-adee-dee-dee".
Violinist/composer Andrew Bird and artist Ian Schneller partnered to create the installation, Sonic Arboretum. You can see it at the ICA.
As a parody of the popular blog, Humans of New York, A.R. Pellowski made a blog titled Pigeons Of Boston: "Telling the stories and sharing the portraits of the millions of pigeons that reside in Boston, one at a time."