Sentence:  When the stray men have worked the herd, it is drove off a ways and turned loose. The calves in the <WSD>cut-out</WSD> groups are then branded and turned loose with their mothers; the strays are thrown into the stray herd or day herd. 
Meaning of the word marked with <WSD> tags:  The separation of a group of cattle from a herd; the place where they are collected.