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.
Normal flight speed going from perch to perch is much less than this. The Bald Eagle catches prey by flying low and âsnatchingâ with their feet mostly, not like ospreys or peregrine falcons that actually dive at their prey. When engaging in this âsnatchingâ behavior, they can reach speeds over 75 mph.