I have 4 Khaki Campbell ducks, 2 hens 2 drakes and have noticed one of my hens looking pretty plump in her chest and rump area. They have recently started laying though I haven't gotten and egg in the last few days. Found 4 eggs on the 21st then one daily until none since the 24th. They have been free range since I got them. They get along, have a kiddie pool, and water, food 20% protein laying pellets is what Tractor Supply had. Now I have looked at millions of photos and have read for days trying to figure out if it is something I should be concerned with but it is all over the place. Some are saying fat duck others are saying other things. Any advise? Anyone else encounter this? I have not caught her to see if it may be hard crop though it doesn't look hard just kinda fat and sways a bit, looks kind of jiggly? She isn't distressed, she is eating and drinking good and is still keeping up with the others.