. Die Vögel Amerikas: Aus Zeichnungen, die in den Vereinigten Staaten und ihren Territorien gemacht wurden. 1 Inch 5 Zwölftel lang, 1 Inch 2 Zwölftel breit; seine Seitenmuskeln sind eng und von mittlerer Größe, die untere prominent, die Sehnen groß, das Epithel dicht, mit Veiy prominent großen ruga?; die innere Schicht der Speiseröhre ist längs platt; der proventrikuläre Gürtel 1 Inch breit, mit sechs breiten Platten. Darm 30 Zoll lang, seine Breite am oberen Teil 5 Zwölftel, abnehmend auf 2 Zwölftel, ceca 3 Zwölftel lang, 1 zwölftel breit, 3 Zoll entfernt von der Extremität, Rektum 5 Zwölftel breit
1330 x 1879 px | 22,5 x 31,8 cm | 8,9 x 12,5 inches | 150dpi
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. The birds of America : from drawings made in the United States and their territories . 1 inch 5 twelfths long, 1 inch 2 twelfths broad; its lateral muscles dis-tinct and of moderate size, the lower prominent, the tendons large, theepithelium dense, with veiy prominent large ruga?; the inner coat of theoesophagus is longitudinally plicate; the proventricular belt 1 inch in breadth, with six broad plates. Intestine 30 inches long, its width at the upper part5 twelfths, diminishing to 2 twelfths, cceca 3 twelfths long, 1 twelfth broad, 3 inches distant from the extremity, rectum 5 twelfths broad, with a globularcloaca 9 twelfths in diameter. The duodenum curves at the distance of 2inches, advances toward the liver in the usual manner, and is afterwards veryregularly coiled in an elliptical form, with 10 bends. Trachea 5 inches long, from 3 twelfths to 2 twelfths in breadth, not flattened, its rings slightlyosseous, 130. Bronchi wide, of 20 half rings. The lateral and sterno-tra-cheal muscles are slender, and a slip on each side extends to the last half-ringof the trachea.. c C : N V 159 THE WHITE-WINGED SILVERY GULL. -fLARus leucopterus, Faber.PLATE CCCCXLVII.—Adult Male, and Young. I have not met with this species farther south than the Bay of New York.During the winter it is not rare about Boston and farther eastward. At theapproach of summer, before the pairing of the Herring Gull, Larus argen-tatus, the White-winged Gulls collect in flocks, and set out for the distantnorth, where they breed. The flight of this species so much resembles that of the Herring Gull, that were it not for its smaller size, and the different colour of its wings, itcould not be distinguished from the other. It is less shy, however, proceedsfarther up the rivers and salt-water creeks, and alights oftener on the wateras well as on the salt-meadows, than that species. While at Portland inMaine, I observed a good number of these Gulls flying over the inner har-bour close to the shores, desce
