[If] one saw an acquirable object and fell upon it, and another came and seized it, the one who seized it acquired it.  [If] one saw people running after an acquirable object —- after a lame deer [or] after young birds that cannot [yet] fly —- and he said: “My field has acquired [it] for me,” it has [indeed] acquired [it] for him.  [If] the deer was running normally or if the young birds were flying, and he said: “My field has acquired [it] for me,” [it is as though] he said nothing.