At 1:14 you see the main character throw a big rock at the starling bird, it gets knocked out of the air to the ground and is unconscious. It’s pretty brutal. She does take it to the vet and the vet saves it.
At 42 minutes, you see a dead bird, which you know was poisoned. When Lily is talking with her coworker, then says she has to go home — either fast forward or turn your head for one minute.