I daresay I have to agree.
This is simply the defination of our 'throw away society' that we have acquired now.
How sad for your birds to see someone they know, your brother's friend. Then when you and your brother go to visit, they will be so confused.
I also beg of you to not get anymore pets until you move out and and can take responsibility of your own. Hopefully by then you will have some.
I realize that the blame is not entirely yours, but I also ask, which one of your pets is the next to go? Tikeya? Oscar?