| tawny owl (strix aluco) and hume's tawny owl (strix butleri) are distinct species: evidence from nucleotide sequences of the cytochrome b gene. | the cytochrome b gene of the tawny owl (strix aluco), hume's tawny owl (strix butleri) and the african wood owl (strix woodfordii) was amplified by polymerase chain reaction (pcr) and partially sequenced (300 base pairs). sequences differ substantially (9 to 12% nucleotide substitutions) between these taxa indicating that they represent distinct species, which is also implicated from morphological and biogeographic differences. using cytochrome b sequences of s. aluco, s. butleri, s. woodfordii, ... | 1994 | 8018253 |
| morphological features of the tongue and laryngeal entrance in two predatory birds with similar feeding preferences: common kestrel (falco tinnunculus) and hume's tawny owl (strix butleri). | the aim of this investigation was to describe the morphological characters of the tongue of two predatory birds with similar feeding preferences, i.e. the common kestrel and hume's tawny owl. descriptive information on the lingual morphology of these two birds, particularly hume's tawny owl, is incomplete. we found that the lingual apex of the owl has an oval, concave, shovel-like form with a bifid lingual tip, while that of the kestrel has the shape of a horny tip-like spoon with a central proc ... | 2016 | 27084364 |
| multiple lines of evidence confirm that hume's owl strix butleri (a. o. hume, 1878) is two species, with description of an unnamed species (aves: non-passeriformes: strigidae). | genetic and morphological analyses revealed that the type specimen of hume's owl strix butleri, the geographical provenance of which is open to doubt, differs significantly from all other specimens previously ascribed to this species. despite the absence of vocal data definitively linked to the same population as the type specimen, we consider that two species-level taxa are involved, principally because the degree of molecular differentiation is close to that seen in other taxa of strix traditi ... | 2015 | 25660770 |