Planet of Birds

Fox Sparrow (Passerella iliaca) Science Article 2 abstract The study of the song of the fox sparrow is a highly tantalizing pursuit owing to the bird’s brief stay, provoking habits of silence and reluctance to sing in full voice. THEODORE CLARKE SMITH, The Ohio Naturalist Vol. 3, No. 6 Download article download full text (pdf)

Fox Sparrow (Passerella iliaca) Science Article 1 abstract On the basis of plumage coloration and mitochondrial DNA variation, four maingroups are recognized within the Fox Sparrow (Passerella iliaca): the red group (iliaca, RE),sooty group (unalaschcensis, SO), thick-billed (megarhyncha, TB), and slate-colored (schistacea,SC). To establish phylogenetic relationships among those four groups, we analyzed 2119 basepairs of […]

Fox Sparrow (Passerella iliaca) Science Article 3 abstract Ontogeny of two morphologically differentiated populations of Fox Sparrows (PassereNail iaca) was compared to reveal the developmental bases of adult morphologicaldifferences. Growth of tarsus, wing, bill, and tail length relative to body mass was compared between the two populations to determine if geographic variation in adults results […]

Fox Sparrow (Passerella iliaca) Science Article 4 abstract In ‘The Condor,’ September 1924, Laurence M. Huey describes the natural death of an Audubon’s Warbler (Dendroica auduboni) under the title ‘The Natural End of a Bird’s Life.’ Huey describes the bird as ‘ascending a vertical rose stem in a peculiar spiral manner’ and otherwise conducting itself […]