102 



NORTH AMERICAN BIRDS. 



12088. Nyctea nivea. (Ear copied from Swainson, F. B. A ) 



504. Scotiaptex cinereum. 



49808. Surnia ulula. (Ear copied from Swainson.) 



A. Brachyotus " cassinii." (Left ear and nostril, from fresh specimen.) 



