Twilight, one of my gerbils, has been making some strange noises lately that neither of her sisters have ever made nor have I ever heard any other gerbil make them. It happens mainly when Ebony is trying to play-fight with her, and the sound she makes is almost guinea-pig like and quite loud. In other words, nothing like the tiny, snuffly squeak that gerbils usually make.

Of course the sound alarmed me a little so I checked her nose and there's definitely no discharge. She breathes normally when not making the sound, but when she does make it her sides heave a little, but not drastically. Her condition is near-perfect and she still acts normal. It really is puzzling me.

Do you think it's just some sort of warning to Ebony to leave her alone? Eb does get a little boisterous with her sisters and more often than not Nightshade and Twilight get bored of her antics fast. Any info would be appreciated.

(I'll be trying to get some more pics of my lot over the next week!)