Black poop can be harmless, caused by certain foods or medications, or it can be a sign of melena, meaning there’s blood in your stool. Melena happens when bleeding occurs in the upper digestive tract ...

Females are larger than males and can weigh up to 5.3kg, measure 1m from head to tail-tip and have a wingspan of up to 2.3m. Young birds have brown feathers that become progressively darker as the ...