In a production facility, labor and material costs are usually variable costs that increase as the volume of production increases. It takes more labor and material to produce more output, so the cost of labor and material varies in direct proportion to the volume of output.
The harpy eagle's name comes from. the harpies of Greek mythology which were ferocious winged creatures with sharp claws, a woman's face and a vulture's body. The average weight of a harpy eagle is 18.4 lbs (8.2 kg). Female harpy eagles are larger than the males. A female can weigh from 14 to 18 lbs (7-9 kg), while the males weigh 10 to 16 lbs (5-8 kg). Their body length is between 36 and 40 inches (1 meter). Their feathers are slate-black above and white to light gray underneath.
The harpy eagle is an endangered species; depletion of the rainforests is a constant threat. The Harpy Eagle Conservation Program works with South American governments, logging companies, and local people to protect nesting sites. arpy eagles (birds of prey) are the largest and most powerful eagle in the world. They inhabit the tropical forests of Central and South American, ranging from Southern Mexico to Argentina.