480 BULLETIN 191, UNITED STATES NATIONAL MUSEUM 



Wright, Horace Winslow. 



1909. Birds of the Boston Public Garden. 



1912. Morning awakening and even-song. Auk, vol. 29, pp. ZQ7-Z27. 

 1914. Acadian chickadees (Pcnthcstes hudsonictis littoralis) in Boston and 

 vicinity in the fall of 1913. Auk, vol. 31, pp. 236-242. 



1917. Labrador chickadee (Penthestes hudsonicus nigricans) in Boston and 



vicinity in the fall of 1916. Auk, vol. 34, pp. 164-170. 



1918. Labrador chickadee (Penthestes hudsonicus nigricans) in its return ! 



flight from the fall migration of 1916. Auk, vol. 35, pp. 37-40. 

 Yarrell, William. 



1882. A history of British birds, ed. 4, vol. 2. Revised and enlarged by 

 Alfred Newton. 

 Yeates, George Kirkby. 



1934. The life of the rook. 

 ZiMMER, John Todd. 



1911. Some notes on the winter birds of Dawes County. Proc. Nebraska Orn. 

 Union, vol. 5, pp. 19-30. 



ZiMMERMANN, RUDOLF. 



1931. Einiges iiber das Brutgeschaft deutscher RabenvogeU Orn. Monatsb.. 

 Jahrg. 39, pp. 99-102. 



