Hiya, I got a second budgie as a friend for merlin a while ago. It was a risk as she is already 2 years a solo female bird (she doesn't speak budgie anymore either I'm fairly sure). But i wanted a friend for her so she wouldnt be alone all day while i was at work. Anyway Arthur joined the family and I finally just introduced them for the first time. Arthur was in his cage and merlin came with me upstairs, loose.
Introductions didn't go great unfortunately. For a start merlin looked at him like he was an alien. She didn't speak to him at all, even though he was chattering at her. Any time they were near each other she would try to bite him through the bars, she bit his poor little toes, his head and was trying to bite his beak (which he was reciprocating beak to beak).
Is this normal? Are they just establishing a pecking order? Or am I doomed to fail? I had these great dreams that they would just meet and chatter away to each other and be firm friends. Alas!
The introduction should be slow and taken at the bird's pace. Start with keeping the cages on opposite sides of the room (after quarantine of course) for a couple of weeks and separate but closely supervised out if cage time (make sure the budgie that is out does bit land on the others cage for risk of biting through the bars).
Gradually they should start to get used to each other (this could take several months) however they may never get along well enough to be housed or left unsupervised together.
I agree with the excellent advice given to you. introducing budgies needs to be done slowly and with care. leaving them both in their own cages to start with. When you do let them both out it should be in a neutral area, especially with a territorial hen. Some birds do not like having a friend they are all individuals.
You can still have them both, but they live in their own cages and interact under a watchful eye when out together.