I decided that since I talk about my younger half-sisters quite a bit in my posts, that I'd refer to the two of them by nicknames from this point on, rather than just calling them "my half-sisters," or "E and D." From now on, I'll refer to my middle sister as "Pandy," since she loves panda bears and anything to do with them, and my youngest sister will be referred to as "BirdGirl," because she loves birds and has three of her own - two zebra finches and a green-cheeked conure. I thought about calling her "Bird Woman" at first, as a reference to the woman who feeds the birds on the church steps during that one song from Mary Poppins (cuz I can totally see her doing something like that in her free time, since she loves birds so much
) but I thought "BirdGirl" had a nicer ring to it.
Just thought I'd give everyone a heads-up, so you'd know who I'm talking about when I mention Pandy and BirdGirl in my posts. 
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I wish Sterling Holloway narrated my life.
"IT'S NOT FAIR!" "Life isn't fair, Calvin." "I know, but why isn't it ever unfair in MY favor?" ~ from Calvin and Hobbes