My heart is a bird that forgot to migrate

Fly, bird, why don't you fly away? And the bird still stays Even though it knows its a bad place to be The bird's stuck there Because its the only place it knows where to go The only place it'll call home And it knows there's somewhere It can go and be safe And the bird will like it But it can't. It wonders what it'll do If the bird really did take flight But it'll stay behind My heart is a bird- Who forgot to migrate