Can anyone tell me what I should do for a bird who was perfectly happy and flying/scratching around the yard an hour ago, but is now huddled on the back porch with her eyes closed? I picked her up and brought her inside; she lay lifeless on a towel at first, breathing and making some noises; then I roller her onto her feet and she's standing but her head is drooping, eyes closed, tail down. She just sat/lay down (like roosting) on the towel and hasn't walked anywhere. What could have happened to her? There's no blood, vent is clean and looks normal, nothing feels hard in her abdomen, crop is normal. What could be wrong and what should I do for her?