 ... flock, consisting of perhaps over a hundred birds arranged in single line, is hurrying on, straight as an arrow, toward its destination, when, without warning, it suddenly makes a wide curving detour of several hundred yards, then resumes its original...  Bulletin of the Nuttall Ornithological Club - Page 135by Nuttall Ornithological Club - 1881Full view - About this book
 | Joseph Grinnell, Harold Child Bryant, Tracy Irwin Storer - 1918 - 700 lehte
...of several hundred yards, then resumes its original course only to frequently repeat the manoeuvre, but always with such unison that the closest scrutiny...addition to this horizontal movement is a still more interesting vertical one which often occurs at the same time as the other but generally by itself.... | |
 | Arthur Cleveland Bent - 1925 - 458 lehte
...of several hundred yards, then resumes its original course only to frequently repeat the maneuver, but always with such unison that the closest scrutiny...addition to this horizontal movement is a still more interesting vertical one which often occurs at the same time as the other but generally by itself.... | |
 | Arthur Cleveland Bent - 1923 - 770 lehte
...only to frequently repeat the maneuver, but always with such unison that the closest scrutiny falls to reveal the least break or Irregularity in the line...addition to this horizontal movement is a still more interesting vertical one which often occurs at the same time as the other but generally by itself.... | |
 | Francis H. Kortright - 1942 - 500 lehte
...of several hundred yards, then resumes its original course only to frequently repeat the maneuver, but always with such unison that the closest scrutiny...reveal the least break or irregularity in the line .... "In addition to this horizontal movement is a still more interesting vertical one which often... | |
 | United States National Museum - 1925 - 1048 lehte
...of several hundred yards, then resumes Its original course only to frequently repeat the maneuver, but always with such unison that the closest scrutiny...addition to this horizontal movement is a still more Interesting vertical one which often occurs at the same time as the other but generally by Itself.... | |
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