AUSTRALIA (CBSNewYork) – A woman has been killed by an aggressive rooster after the bird’s pecking caused a shocking and horrific loss of blood.

According to medical professionals reporting the case in the journal Forensic Science, Medicine, and Pathology, the 76-year-old in Australia was collecting eggs when the rooster started pecking at her left leg.

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Medical examiners say one of the rooster’s peck wounds caught the woman right over a large varicose vein in her leg and caused a “significant hemorrhage.”

“Death was therefore due to exsanguination from bleeding varicose veins following an attack by a rooster,” physicians wrote in the journal.

“This case demonstrates that even relatively small domestic animals may be able to inflict lethal injuries in individuals if there are specific vascular vulnerabilities present.”

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Varicose veins are swollen, twisted veins which are usually found in the legs and can be easily seen under your skin.

Those veins typically note a problem with a person’s blood flow to the heart, which then pools back into the veins and causes them to swell up full of blood.

The report noted that the 76-year-old also suffered from other medical issues including hypertension and diabetes.

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It’s not clear if that contributed to the rooster’s fatal pecking attack.