I brought a bird into the house that was hacking and coughing. Sounded just like the crappy cold stuff going around. She was sneezing and struggling to breathe. She was fine this afternoon. I gave her antibiotics from a syringe. Slowly, letting her drink it down. After that, I realized she had blood at the corners of her mouth. 5 min. later she was dead. She must have choked on the water, even though I let her drink it slowly. Is it likely she ate something she wasn't supposed to? I found some broken glass in the pen. (I've moved to a new house and my chickens are digging up all kinds of things I have to keep throwing away) And should I keep my other birds on antibiotics just in case? Thank you Not a happy bird mama. I only did what I thought was best trying to save her life.