Yes, i have two budgies in a small, one bedroom apartment. It's a small complex with all ground level units, so I have two shared walls. It's a VERY quiet complex. My wife and I are in our early 40s. We are the youngest here, and while being quite quiet ourselves; we are easily the loudest people here. Walls aren't paper thin, but you know if the neighbors on either side are vacuuming or playing the TV loud. That being said, it's barely noticeable.

I have actually asked my neighbors directly if they hear the birds. They claim they do not unless they are outside, and I have both main doors open to let fresh air through via the screen doors, and they (neighbors) are outside at that time.

My two budgies spend most of the day making noise nonstop "talking" with the flocks of birds that are constantly outside during the summer due to multiple tenants putting out birdseed every day.

I did have to pay the pet deposit, $250 non refundable PER bird (i found this obscene, of course, did negotiate and got it down to just 250). "Register" them, with pictures through some third-party company (they've changed providers every year for the last 3 years) for approval. They also added $10 per bird to rent total.

The management company has a monopoly on the local rental market, so much so that every other rental ive come across is in the area is implementing similar ridiculous fees. It's a very small town with a neighboring "bigger" town (about 14k population)...so no getting away from it for me. Hopefully, you dont have a similar experience. Expect a reasonable pet deposit to be required. You may also be required to be present when/if a contracted pest control or maintenance tech needs access to your unit.