. Bird-life : a guide to the study of our common birds. Birds -- United States; Birds -- United States Pictorial works. Fro. 11.—Central tail-feathers of Motmot (Momotus svbrufescens), showing newly grown feathers (at the left) and results of self-inflicted mutilation. in confinement where they were isolated from others of their kind, trimmed their tail-feathers soon after they were grown.* The habit, therefore, is inherited, but the mutilation, although it has doubtless been practiced for countless generations, has not become inherent, unless we consider the constriction in the vane of the fe


. Bird-life : a guide to the study of our common birds. Birds -- United States; Birds -- United States Pictorial works. Fro. 11.—Central tail-feathers of Motmot (Momotus svbrufescens), showing newly grown feathers (at the left) and results of self-inflicted mutilation. in confinement where they were isolated from others of their kind, trimmed their tail-feathers soon after they were grown.* The habit, therefore, is inherited, but the mutilation, although it has doubtless been practiced for countless generations, has not become inherent, unless we consider the constriction in the vane of the feather at the place where it is to be trimmed an indication of inheritance. The Motmot gesticulates with its tail in a remarkable manner, swinging it from side to side, so that it suggests the pendulum of a clock, or sweeping it about in circles with a movement which reminds one of a bandmaster flourishing his baton. "We shall find in other species, also, that the tail, more than any other organ, is used to express emotion. Kecall its twitching and wagging; how it is nervously spread or "jetted," showing the white * See Cherrie, The Auk (New York city), vol. ix, 18(J2, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Chapman, Frank M. (Frank Michler), 1864-1945; Seton, Ernest Thompson, 1860-1946. New York : Appleton


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Keywords: ., bo, bookcentury1900, bookdecade1900, booksubjectbirdsunitedstates