She didn't appear to look out of the ordinary at all, hadn't been acting sickly, was eating and drinking normally, and flying around just as active as she always was. She wasn't egg bound (I made sure to feel for an egg) and no signs of a wet vent. I'm thinking she either passed from a freak heart attack, or possibly a night fright, and hit something. (I have a night light on, just in case)
As a precaution, I wormed all the birds in that aviary, and treated them all with Scatt (I think the male has a severe case of ASM, because while catching him today, he was making a very heavy wheezing sound
) and trimmed all their nails (only 2 bleeders!) before moving them into their new, bright and clean aviary. Everyone seems to be doing well, and I've not seen any other signs of illness in the other birds.
