I have a cat that's about 13 years old. She's my sweet, eccentric kitty that will let me know when it's time for me to go to bed among other odd behaviors. We've got the goslings outside in a dog run. At night, I usher them all into the dog crate that's in the run and lock them up. They also have a heat lamp on them to keep away the chill. This has been the set-up for them for the last 4 nights. Two days ago, at about 5 am or so, my cat has awakened my husband with a screaming yowl as if she's in a cat fight. She'll be sitting at the back door staring towards the gosling's run and screaming.
DH was none to thrilled about the rude awakening, to say the least! Personally, I don't think she's yelling at the goslings. I told DH that I think she sees something and by the time he jumps out of bed to investigate it, whatever was out there is gone. I'll be getting a trap pretty soon and I'm hoping to catch whatever she feels threatened by out there.
Either she's screaming at a possible predator or she's gotten so old that she's seeing things.

Either she's screaming at a possible predator or she's gotten so old that she's seeing things.