Am I the only one that is thinking that maybe there was something wrong with these budgies before she got them? It just seems odd that both of them died(in a very close time span, correct?) not long after you got them and your original guy is still ok? It's definitely not a complete diet but feeding them only seed shouldn't kill them in a two week period unless they weren't actually eating the food. As sad as it is, I have known plenty of people that keep budgies and 'tiels and feed them nothing but seed all of the time, out of sheer laziness and lack of interest in the bird. It's usually people that buy them for their kids and then get stuck taking care of it when their kid looses interest, that I see feeding this way, but I have met birds that have lived for years on only a seed mix. Like I said, I'm not condoning that, just saying that that shouldn't have killed two budgies in two weeks. How long did your friend have them before she gave them to you? Maybe they just didn't adjust to the move and stressed too much? Years ago, my uncle had a pair of lovebirds that he had for 15 years(also fed nothing but seed their entire lives, he just didn't know any better and I was too young to know any better and tell him), he ended up giving them to a friend of his and she had them less than a week before they both died, she did nothing different than him, kept them in the same cage they had always been in, they just got really stressed at being moved and thrown into a different environment. Also, I'd like to add, while it is important to wash your hands between the reptiles and birds(ideally you should wash your hands between handling any animals that are housed separately, even if they are the same type of animal), we had a bonded pair of 'tiels, a single 'tiel and a budgie that lived in the same room as our reptiles for over a year without any problems. We had snakes, lizards, inverts, a bunny, a chinchilla, and the birds in the same room(it was the animal room, they had the biggest room in the house

), we made sure to not exchange any dishes between them and we always used hand sanitizer between handling different animals and their cage items and it worked out remarkably well.