SEM of Feather Quill Interior

SEM of Feather Quill Interior

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Credit: SCIMAT/SCIENCE PHOTO LIBRARY

Caption: Feather quill interior by SEM. As a fracture shows, the interior consists of a pithy material that contains air cells to make the quill light yet strong. This feather is from a common grackle (Quiscalus quiscula), now the most abundant type of breeding bird in North America and considered a significant pest in many areas because it feeds on agricultural grains and seeds, especially corn. Enhanced SEM. Image width: 174 micrometers. Bar: 20 micrometers. Magnification: 575x if the image is printed 10 cm wide.

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Keywords: air cells, anatomy, animal body, bird, common grackle quill, electron microscopy, feather, feathers, interior, internal structure, magnified image, quill, quill interior, quiscalus, quiscalus quiscula, scanning electron micrograph, scanning electron microscope, science, scientific, sem, zoological

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