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PI.AIK XXXVIII. 



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FORMS ANT) ATTTTZ'DES. 



Fig. 1, Screech Owl 3fef/ascops aftio (Linn.); Fig- -, Great Horned Owl Bubo 

 virriinianus {Gmel.); Fig. ;>, 8uowy Owl Xi/ctea nyctea (Linn.); Fig. 4, American 

 Barn Owl S'trix jiractincola Bonap. 



