1.   A few blocks away, a dog pack has lived unhindered so long the alley is thick with dried feces.

2.   I even mowed the yard this week and removed the land mines left by the dog pack.

3.   In his office, he has a file of photos of cattle he says were mauled by dog packs in the northern reaches of the river area.

4.   They infiltrated a group of guides who use dog packs to trap and tree bears.

5.   Teams of hunters from the village had been trying to disperse the dog packs.