3yr old Polish pumping tail feathers

[Nbkn]

Yesterday i saw my little lafonda laying in the grass..thought it was sunbathing and paid no attention. Today, i noticed that when she is seated she is pumping her tailfeathers. Eating and drinking fine, roams in yard with other. Poop very small. She never has been a good layer. Advice on the pumping?

 

[aart]

Could be constipation or egg bound.

When I have a bird that is acting 'off' I isolate bird in a wire cage within the coop for a day or two....so I can closely monitor their intake of food and water, crop function(checking at night and in morning before providing more feed), and their poops. Feel their abdomen, from below vent to between legs, for squishy or hard swelling. Check for external parasites or any other abnormalities.

Best to put crate right in coop or run so bird is still 'with' the flock.
I like to use a fold-able wire dog crate (24"L x 18"W x 21"H) with smaller mesh(1x2) on bottom of crate under tray.
Then you can put tray underneath crate to better observe droppings without it being stepped in. If smaller mesh is carefully installed, tray can still be used inside crate.