Background: I had a flock of 6 and there was only one that died. Normal behavior up until her death. An ameraucana born in March, just started laying in October. We fed them this morning and around 2pm I went out there to check on them and she was on her side at the base of the ladder to get up to the hen box, eyes closed, dead cold. No visible wounds. My hens all get along no one ever fights. She produced 1 large white egg every other day. Ate normal. Update: Uconn does free autopsies for CT residents. Here are the results: HEPATIC HEMORRHAGE SYNDROME MORPHOLOGIC DIAGNOSIS: WHOLE BODY: Marked pallor LIVER: Multifocal intrahepatic hemorrhages and subcapsular hematoma COELOMIC CAVITY: Hemocoelom The sudden death reported in this chicken is the result of massive internal hemorrhage arising from the liver. This together with the abundant body fat and lesions in the liver are consistent with Hepatic Hemorrhage Syndrome (previously called Fatty liver hemorrhage syndrome, FLHS). Excessive dietary energy intake is believed to be a major contributing cause of this condition especially in actively laying birds. In addition to nutritional factors, genetic, environmental, and hormonal factors, or combinations of these, also have been proposed, but not yet proven, as the underlying cause. GROSS FINDINGS: A 2.2 Kg, 9-month-old, gold and white, Ameraucana chicken hen was received dead. The body condition was good with well developed pectoral muscles and abundant body fat stores. The tissues were diffusely and markedly pale. There was a massive blood clot in the coelomic cavity adjacent to the liver. The liver was moderately enlarged, pale yellow-tan and markedly friable. Several hemorrhagic foci and a few variably sized subcapsular hematomas were present in the cut surface of the right liver lobe. The ovary was active with developing follicles. There was a shelled egg in the oviduct. The ventriculus contained abundant yellow and fibrous feed material and grit. The intestinal contents were normal. CURRENT DIET: Nutrena layer pellet Rooster booster Oyster shells Grit And I give them clover greens when in season. Fall and winter I give them one 12oz cup of cracked corn and seeds/fruits/veggies. MY PLAN FOR THE FUTURE SO THE OTHERS DON'T DIE: I want to withhold the corn or maybe give them one 12oz cup a week. Strictly the layer pellet mix mentioned above and vegetables. Any other suggestions to lean them out? Thank you in advance.