I'm going to be unoriginal and ask you the same one you asked me (but I like it, it's a fun question!). #11 from the bird asks!
Spencer likes to randomly roll onto his back. Sometimes he just hangs out on his back, sometimes he rolls around, and sometimes he scoots around. This evening, he was in the budgie cage, and decided to lie on his back near one of the cage walls and drag himself around using one foot on the bars. He used this tactic to chase poor, confused Horatio around a little, which was pretty hilarious. He also has a habit of putting his head down against the back of the couch and then running back and forth, which is bizarre and REALLY adorable. Conures are so weird.
Beatrix has a habit in the mornings that before she'll eat her veggies and grains, she has to go into her cage and make sure nothing has changed overnight (since she sleeps in a smaller cage in the bedroom). She does a little tour of her day cage, then, when she's satisfied everything is as it should be, she comes out and eats her breakfast (and usually some of my breakfast, lol).
Horatio's main habit is CONSTANT FLIRTING, mostly with Oliver, but also somewhat with Violet and inanimate objects. Lately in the evenings he's also been going into Spencer's cage to eat his food while the other budgies go hang out the playgym, and then gets flustered because he can SEE the other budgies, but he can't figure out how to get to them (seriously, I love Horatio, but he is NOT very smart), so he sits on a perch close to the playgym and chirps at them loudly. I don't fully understand how he can get INTO Spencer's cage just fine, and can get out LATER in the evening, but gets so confused by the sight of the other budgies on the playgym he loses his ability to navigate. Poor Horatio.
Oliver is obsessed with the non-budgie birds. Beatrix is terrified of him because he'll come running over if he sees her on the playgym. He just wants to flirt with her, but she doesn't like budgies, lol. Spencer and Oliver, on the other hand, will spend time flirting with each other--they preen each others' beaks, and Spencer even tries to twitter back at Oliver (which is adorable).
Violet has proven herself to be the smartest of the budgies, in that she's figured out that if she ends up on the floor, she can scurry over to Spencer's cage, and then jump and flap her wings and get ahold of the front of the cage, after which she can just climb up wherever she wants to go. None of our other budgies ever figured this out (although I think the boys are learning from watching her, because I saw Horatio do it yesterday, and Oliver did it tonight, but Violet's been doing it for weeks). She's a smart little hen!