Sense Sonnet - Steamer

Tern for the Verse

Arctic terns try to avoid man,
Migrating yearly pole to pole,
Flying on high o'er oceans' span,
Maintaining air traffic control.
But terns must come to ground to nest,
And there must be ever alert
To guarding against human pest,
Who at times deserve to be hurt
By getting struck by claw and beak
With a coloring of dark red,
Which blends nicely with goal to seek -
A human running with head bled.

Humans are nothing but a curse,
Turning any tern for the worse.