Pregnancy: Diagnostic Tests. The list of diagnostic tests mentioned in various sources as used in the diagnosis of Pregnancy includes: Urine human chorionic gonadotropin (HCG) tests - these are the basis of home pregnancy tests.
Eagles (and most large birds) fly by soaring; it's much more energy efficient than flapping their wings. We do use the technique for our own flights. The reason eagles and other soaring birds do this rather than flap is that they generally hunt from the air and so spend a lot of time waiting for prey. They don't need to go anywhere specific and don't need to move fast until they spot prey. Until then they want to use as little energy as possible.
The wingspan of a harpy eagle can be over 2 metres (6.5 ft) wide. Their wings provide the lift that allows them to carry prey items weighing more than 7kg. Their bodies can be up to 1 metre (3 â 3.5 ft.) long. Harpy eagles are built more for a quick chase rather than a sustained pursuit, and can reach speeds of 50 mph (80 kmph)! The harpy eagle is the heaviest bird of prey in the Americas, but the Andean condor, above, has the longest wingspan.