Female budgie being and picked on and starting fights
Bebe and Zazu always had issues sleeping near eachother while Rafiki and Elise wouldn't interfere in the fight. And eventually Bebe would just move next to Rafiki however lately she's even pecking him and 'hisses' (I'm not sure if that's the proper term) at all the birds in the cage at night refusing to have them near her (above, below or next to her) when I put the cover on which I've had to remove different times due to Zazu having night terrors once or twice possibly from this.
However just tonight 5 minutes after putting on the cover I heard someone flapping around so I checked and Zazu was panicking, I talked to all of them very calmly then once he had calmed down I put the cover on but the fighting started again & it got really noisy and soon Bebe flew to the front of the cage scared.
What can I do besides seperating them?
Am I maybe covering them wrong?
Does this fighting only happens at night and if so is this a common occurrence as in every night?
You are very right in assuming the night fright can be triggered by this fighting and shifting of places during the fights.
In some cases, rearranging the cage and placing swings/perches at the same level (in terms of height) can help in minimizing or putting the night time fighting to a stop.
If you already have your cage strategically arranged to cater to your budgies sleeping needs and you are still having issues and also if there is bullying and chasing around during the day too, then it would be best to separate the instigator budgie and house her on separate cage.