Travellers have represented the male of the Condor as larger and as having more handsome plumage than the female. We hope to be excused for here asking attention to this point, should opportunity occur to any of our readers. It is the only known or supposed instance in the order of Rapacious Birds, of the male being the larger, and, if true, of course establishes an exception hitherto not recognized by naturalists. In these birds, and especially in the Falcons and Eagles, the difference in the size of the sexes of the same species is often very remarkable, but the larger is invariably the female. Further experiments and observations by persons having suitable opportunities and facilities are very desirable for the purpose of ascertaining the degree of development of the senses of sight and smell in the Vultures. Eminent authors have maintained quite opposite views on this subject, some attributing the fact that they perceive objects suitable for their food from a distance, to the acuteness of their sight and others to their power of smelling. This is yet an open question, though there is a very considerable amount of evidence on each side, and may be regarded as presenting an interesting field for further investigation. [Illustration: Plate 11 Kirtland’s Owl Nyctale Kirtlandii (_Hoy_)] NYCTALE KIRTLANDII.—(Hoy.) Kirtland’s Owl. PLATE XI.—Adult Male. Having in the eastern portion of the United States no traditions nor architectural remains which date beyond the first settlement of the white man, our people are but little prone to many of the superstitions which have prevailed in the old world. In the absence of the ruined monastery or crumbling abbey, of the ivy-covered baronial castle and haunted tower, local and legendary superstitions especially, have found no considerable nor permanent place in the popular mind.