Poorly chicken

[Michelene]

My chicken seems under the weather, the past week she has seemed slower and the last couple of days a little hunched over. I have also noticed she seems pale and looks a different colour around her eyes. She is still eating but seems to be sitting around much more. She is one of 5 and is totally free range in a 2 acre garden, they roam all day then take themselves to bed at the right time to their omelet coop with autoclosing. I have a 2 pictures, the first from a month ago and the other today. Anyone have any ideas?

 

[Bawkbok]

What a pretty bird. Has she started laying eggs yet?

 

[Michelene]

Yes she is almost 4, she tends to lay in random places around the garden but I have found any from her for the last couple of weeks, not sure if she has stopped laying or found a new spot that I’m yet to discover

 

[Tookie]

First thing I would do is do a look over on her.
Does she seem lighter than usual? Is she skinny?
How does her crop feel? Is it empty or full? If its full, is it hard, squishy, or doughy? Early in the morning check on her crop and see how full it is, unless its just about empty.
Check her abdomen, which is underneath the vent, behind the legs, does it seem bloated? Comparing with another chicken will help tell if its a normal size or not.
Look for any mites or lice and especially look around the vent area.
Also check her over for any possible wounds, although that probably isn't what's wrong, it wouldn't hurt to look.
Lastly, have you seen any worms in your flock's droppings? If so you'll want to deworm. If you haven't noticed worms then that's probably isn't what's wrong.

 

[microchick]

Her comb in picture #2 is definitely paler. @Tookie hit things that might be wrong. Only thing I was going to say is possible parasite load. Coccidia springs to mind, especially in young birds but I would definitely try to check her droppings for blood flecks or parasites.

She is a pretty girl!