They may be in "plain" view

• Targets of cattle calls
• Tends, as sheep
• Groups of cows
• Cow clusters
• Drives together
• Does a cowboy's job
• Groups of zebras
• Groups on the range
• Bovine bunches

Wiktionary Word definitions in Wiktionary
n. (plural of herd English) vb. (en-third-person singular of: herd )