So sorry Liz. Gosh you've had a rough week. I feel for you.

Liz, sorry when I posted before I didn't realize Gus was the new Parrotlet, I thought it was one of the Budgies. I'm glad you are forgiving her.

In re-reading your OP I noticed something about putting her back in the cage in a hut. That's where Pickles attacked her? So I want to point out that it was the middle of the night, and Pickles has been through a very tough physical and hormonal and emotional month. Changing homes, having the Vitamin A deficiency which in itself is life threatening, calcium depleted, and egg laying almost egg bound.

Especially being exposed to all the breeding with the Budgies and paired Tiels, even her still flying into nest boxes. So I'm very sure that she had no idea what was going on. Remember they cant even see in the dim/dark.

I have no idea what happened but a two month old Parrotlet is barely even weaned let alone having any skills or ability to communicate with a 3 month old hormonal hen. Not to mention when injured and in the dark. Not trying to make you feel worse but I'm trying to take Pickles side here. I dont see that she is "going around trying to kill other birds". That cage was her home and she didnt know what was going on. I think she is just trying to stay alive herself and cant deal with her hormones yet. She should calm down and become better adjusted as soon as they subside.

The hut may or may not be a good thing. It might be a safety place for her OR a breeding egg laying trigger. It's hard to say. I think I might go for a safe cage cover instead in her condition. Safe meaning not chewable or having strings that might catch her legs or toes or beak in them.

Gus was over 1 year old and Pickles has known Gus for a long time, it wasn't just sudden. I removed the hut, we keep a night light on for Pickles since she cannot glide and we don't want her to be blind at night and hurt herself. She was able to see just fine. Pickles personally does not go to sleep until Midnight, we've tried EVERYTHING and she just peeps and peeps until midnight when she finally falls asleep. So we put Gus back in the cage around 11pm. They were fine for 3 hours until we heard that loud peep.
We do NOT have tiels breeding and we had 1 breeding pair of Budgies who are no longer breeding either. No breeding pairs right now, actually all pairs are seperated right now. She jumped into the nest box 1 time, because she was running around on the floor and it was underneath the table where we keep the food. Since then we've removed the nest boxes completely.
Pickles is not 3 months old, she is 3 years old, Gus was very hormonal as well. We only got him as a companion for her, not as a breeding partner.
I love my Pickles, I don't blame her for any of this. Just that she did it and because of that until she's better she will have no Parrotlet friends.

Liz, I am so sorry. I know how devasated you are and I think you are making the right decision to keep Pickles as a single bird. (((HUGS))))

Liz

I am so sorry to hear this. I know how devestated you must be.

Many hugs,

Mary

Liz,

Your a good birdie mommy and dont forget that Hon.
((((((((((((((((hugs)))))))))))))))))))

I just saw this thread, Liz I'm am truly sorry for your loss. Sending you and all your family prayers.

I am soo sorry Liz, theres nothing I can say to make you feel better but I just want you to know that I am thinking about you guys and your birds.

Liz, I'm so sorry to hear you lost Gus!