. The birds of Illinois and Wisconsin. Birds; Birds. -^^â "â¢AxiUarg or AxiUaty Plumes Under Surface of Wing. The speculum. A term used to indicate a patch or band on thp wing (usually of different color from the rest of the feathers), formed by the terminal portion of the secondaries, very noticeable in the Ducks. (See illustration, page 12.) The Axillary Plumes, or Axillars, are an important aid in the iden- tification of many species; these are several rather elongated feathers growing from the armpit (axilla), at the junction of the wing and body. THE TAIL. The Rectices, or Tail Feath
. The birds of Illinois and Wisconsin. Birds; Birds. -^^â "â¢AxiUarg or AxiUaty Plumes Under Surface of Wing. The speculum. A term used to indicate a patch or band on thp wing (usually of different color from the rest of the feathers), formed by the terminal portion of the secondaries, very noticeable in the Ducks. (See illustration, page 12.) The Axillary Plumes, or Axillars, are an important aid in the iden- tification of many species; these are several rather elongated feathers growing from the armpit (axilla), at the junction of the wing and body. THE TAIL. The Rectices, or Tail Feathers, proper, number from 8 to 24, and in-some very few cases even more. By far the greater number of birds, however, have 12 rectices. The small feathers overlapping the rectices are called upper tail coverts, while those below are the under tail coverts or crissum, although the latter term is often used to include the region immediately about the TVuncoie or squari Uvl. 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 Cory, Charles B. (Charles Barney), 1857-1921. Chicago
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Keywords: ., bookauthorcory, bookcentury1900, bookdecade1900, booksubjectbirds
