chicken making broody velociraptor noises

[babychickens321]

I have a 5-6 month old pekin bantam pullet and (at night) when I go to put my chickens away, she starts screaming like pterodactyl and makes those broody screams inside her coop. If I reach inside to touch her she fluffs up and starts screeching as if she's broody but she is not, because the next morning she's normal and running around. Also, if my other pullet tries to come inside, she starts fluffing up and screaming as well. The same is for my other pullet. They both make broody screechy noises when the other one comes, and my hand. My rooster is the only one safe from their noises. Also, whenever I hold/stroke them IN THE NIGHT, they make these weird high pitched squeaks when I stroke them like they're surprised, but they're fine throughout the rest of the day. they just make weird broody noises even though they're not broody and fluff up even though they're not broody, and scream when my hand or the other pullet comes, but not when my rooster comes, just at night. And when they see food(still at night), the other two fly out to get to it and my other pullet (mainly my lavender one) just stays inside fluffed up. Don't think she's sick, although sometimes during the day, my pullets randomly stand still fluffed up (only for like 5 seconds) then return to normal.

Why do they act so screechy and weird at night for?

 

[sourland]

Sounds as if something has them scared. Has there been a predator attack recently ?

 

[babychickens321]

Sounds as if something has them scared. Has there been a predator attack recently ?

hmm there has not been a predator attack, but definitely loads of stray cats roaming, which they alarm the whole neighbourhood of. The cats have been there ever since they were babies and it never was an issue then.. but there definitely has been an increase
Now that I think of it, today they were making the quiet clucks before an alarm call and craning their necks and standing still. There was literally nothing anywhere and I did walk around the garden because that calmed them down a little, but they were still frozen and having their necks stretched forwards and eyes glued to one place. I feel really scared sometimes, because I don't see a single thing, but last time they did this I thought there was nothing, but it was only after I saw some movemen that I saw a black cat hiding in between the fence. I had thought it was a pipe...