3 year old cockatiel began panting and later died
We had two cockatiels, one male (Nibbles - on the ladder) and a female (Bubbles - on the perch). I clipped their nails tonight, which upset the female. After I was finished, the female began panting, and seemed to be off balance. She stayed on the bottom of the cage and died a few hours later. I have clipped their nails before, and she has never liked it, but we have obviously never had this kind of result before.
Did we do something wrong? Should we be concerned about the male?
Thanks for any advice!