1) What type of bird , age and weight (does the chicken seem or feel lighter or thinner than the others.) 1 1/2 year old Sussex hen --has always been small in size compared to the others, but lively and healthy 2) What is the behavior, exactly. Extremely swollen legs, "squishy" with fluid, cold to the touch -- NOT lame, however, and no sign of injury/bumblefoot. Legs are not red or irritated. Eyes are bright, no paleness in comb/wattles, normal level of activity, just really puffy legs! 3) How long has the bird been exhibiting symptoms? Unknown - just noticed today. 4) Are other birds exhibiting the same symptoms? No. 5) Is there any bleeding, injury, broken bones or other sign of trauma. None. 6) What happened, if anything that you know of, that may have caused the situation. Unknown. We have suffered recent hawk attacks but this hen shows no sign of injury/trauma. She was formerly free-ranging but for the past 3 days she is penned up for the first time with the rest of the flock to protect from hawks. 7) What has the bird been eating and drinking, if at all. Layer/breeder pellets, same as always - no change in diet. 8) How does the poop look? Normal? Bloody? Runny? etc. Unknown, she is in a pen with 16 other birds. 9) What has been the treatment you have administered so far? None, we're not sure what to do. 10 ) What is your intent as far as treatment? For example, do you want to treat completely yourself, or do you need help in stabilizing the bird til you can get to a vet? Treat ourselves. 11) If you have a picture of the wound or condition, please post it. It may help. See below. 12) Describe the housing/bedding in use Bedded in shavings. My first thought was that this is similar to what you see in humans with heart, kidney, or circulation issues. She seems bright and active enough, no listlessness. She has always been a runt. She was vaccinated for Marek's at the hatchery. My main concern is whether or not this is something contagious, and what we should do to help resolve the issue.