谁能翻译一下这篇文章1No two sorts of birds practise quite the same sor

谁能翻译一下这篇文章
1No two sorts of birds practise quite the same sort of flight； the varieties are infinite，but two classes may be roughly seen. Any shit that crosses the Pacific is accompanied for many days by thesmaller albatross， 2Which may keep company with the vessel for an hour without visible or more than occasional 3movement of wing. 4The currents of air that the walls of the ship direct upwards， 5as well as in the line of its course， 6are enough to give the great bird with its immense wings sufficient sustenance and progress 7but must yield to the opposition