In season?

[rhhs01]

Hi all. I'm new here but I have owned guinea pigs for over 16 years.

My Guinea pigs are all girls, and recently haven't been eating as many of their greens as they normally do. Their behaviour has been a bit odd recently too. They are all rumbling a bit more and grooming each other more.
One of them has slightly smaller poops than normal too.

The only things that have changed is that the weather has been better so they have been able to be out on the grass more.

What could it be? Thanks

 

[Piggies&buns]

Welcome to the forum

How old are they?
How long have they been together?
How many piggies are there?

Are their weekly weight checks all ok, not showing any signs of weight loss? Particularly the one with smaller poops?

If they are suddenly eating a lot of grass then that may be why they aren’t eating so much of their veg. Rich spring grass should be treated as the veg part of their diet - feed some grass and reduce veg intake.
However it is also very important that they are acclimatised to spring grass very slowly each year. Too much grass on unprepared tummies can cause problems.
Start by picking handfuls of grass to feed to them in their cage for a few weeks.
If you then start putting on the lawn, then it needs to be just for a few minutes for the first week, add in a few more minutes the second week etc etc. Third week they may be able to be on the grass for half an hour, then Increase it a bit more from then on etc until they can be on the lawn for several hours.

 

[rhhs01]

3 entire females. Ages are unknown as they are all rescues. 2 are together and one single as she does not get on with the other 2. But the pair have been together for 3 years very happily.

One the days they have been outside they haven't eaten much of the grass. And it's not for very long as I worry about the oldest getting cold, this is because I believe her to be 8 years old