The last job of the day

Once all the chores are done,
the last job of the evening is walking the collies.

This is the time the collies can relax and play.

However, they do not relax and play!
Lad, never leaves my side,
Solo herds Echo,

 (and Echo ignores him!)

Sheila herds Streak,
(Streak ignores Sheila)
Kim herds everyone,
(They all ignore her!!)

Sheego runs around like a chicken without a head
 and Zac,
all he does is make doggy snow angels!