Its been almost 9 years since I have gotten myself a new parakeet. My old parakeet is about 10 years old and his only company is my cockatiel. The two gets along very well but you know, it not exactly the same, so meet Atlus! The name will change if I find out if he a she, haha!
I have gotten last week and he's in a room by himself as the others are in the same room as me. I set up my Nintendo switch right by him so when I game he gets used to me. He knows the others are around, he calls for my older parakeet a lot (and he calls back, which he doesn't do much anymore even if I play a video of parakeets) and it just adorable! The little guy is a huge handful though, he likes to get out of his cage. Thankfully his wings are clip so he can't get far (long as I keep the door close, yeah that happen once) but man is jumpy! I've gotten the point I just let him come out and around until its time to chase him back to his cage. lol, He gets tired out or realizes I'm trying to put him back in the cage, then he jumps on my hand or arm as I put him back. However, he still doesn't trust me or properly adjusts to me yet. I cannot wait until he's ready to be around the old man.
From the picture, it appears Atlus if a very cute little budgie boy.
If you post a full-frontal close-up picture of his cere taken in natural light, we can confirm the gender.
I'm glad to hear you have Atlus in quarantine.
For new members:
Quarantine means housing the new bird in a different cage in a different room than the current bird (as far away from the room the current bird is in as possible) for a period of 35-45 days.
Budgies mask symptoms when they are ill. Symptoms may not show up for over two weeks.
Often you will not even realize your bird is not well. Many budgie illnesses are airborne which is why you need to quarantine your new bird in a completely different room.
It is also a good idea to always take a new budgie in to see an Avian Vet for a "well-birdie" check-up. This allows you to develop a good relationship with the vet and the vet can establish a baseline for your bird in case of any future illnesses or injuries.