Possibly sick parakeet

Question
I have 2 parakeets, a male and a female.  Since yesterday am seeing the female fluffing her feathers.  She is still moving and eating normally. She looks a little bigger.  Not sure if she is sick or pregnant.  Do I need to take her to the doctor?  I am really worried about her.

Answer
Birds do not get any bigger when they have young as they really don't get pregnant. If she produces an egg, it comes out in 24 hours. She only looks bigger because she's fluffed up. If she is fluffed up, she is apparently losing body heat which means she is either cold or has a fever. If she's not in a draft or a cold part of the house then she might have a fever. You can take her to the vet or wait a day or two to see if she gets better or worse. Hopefully better.