Birds and Seeds

I received a bag of mystery seeds in the mail I didn't know what to do with them so, I took them outside to be sorted out When some birds swopped down, grab The seeds then flew away, three days later Some giant birds flew in my yard an sat Suddenly,they begun to tear through my flowers As if they were looking for something I recognized two, from their feathers and markings But their faces had turn into something horrific Big budging eyes an growth covering their faces They had turn into monsters from eating the seeds If humans had planted the seeds to grow food They would be ugly monsters to