Should A Poem Be Or Not Be Like You Want It To Be?

For the sake of this 
Poem, let’s go out 

On a limb and say 
Ferocious— 

A scurvy feral 
Feline tensing it- 

Self to scurry up 
A budding 

Tree, all set to seize
The moment

A carefree song 
Bird alights on 

That nearest now quivering 
Thin green limb for all 

The innocent 
To see.