![]() ![]() When you are near wild nature we all can see how birds of prey have a difficult time as well. So many birds suffer from hunger, get weak and are an easy prey for the peregrine falcon. Most of those preybirds eat things that are not available now. In general pigeons are fat rich food and can supply the peregrine with the food it needs to stay warm. To keep up their high metabolic rate the peregrine falcon needs high energy foods. ![]() Shivering converts muscular energy into heat for the short term and that energy must be replaced soon. It is the main way birds increase their heat production while the bird is at rest. Shivering is used by almost all birds for short term adjustment to the cold. Some birds perch on one leg, drawing the other leg to the breast for warmth. The more air spaces, the better the insulation. On cold, wintry days, most birds fluff up their feathers, creating air pockets that help keep the birds warm. In nocturnal birds, such as owls and nighthawks, the body temperature is higher at night when these birds are most active. ![]() The maintenance of body temperature within a normal range depends on the amount of heat the bird produces and the way it conserves heat. In general, this means that they maintain their body temperature within a certain range even when the temperature around them changes. Especially now they need loads of rich food.īirds are warm blooded. Our peregrine falcons are birds of prey and need to kill in order to stay alive. High up towers, churches and other buildings they do not seem to care about ice cold winds. While we are all nice and cosy indoors, our peregrine falcons stay outside. With the winter in the Northern Hemisphere temp is way below zero. Complete dive: When the peregrine has pulled its wings completely against its body, serving as a vacuum-packed wrap around it, it can reach speeds of 200mph.Hillary of Hilliard by Chris & Chad Saladin These special feathers are shown in the picture to the left. During the vertical tuck, researchers found that certain feathers on the midsection of the body popped up in a cupped shape similar to special flaps that air crafts use to control lift. Vertical tuck: Once the peregrine has pulled its wings closer to its body and is in the tucked shape, it can fly as fast as 150mph. At this point, the peregrine falcon is traveling at about 119mph. The wings are in a diamond shape, but have not been pulled close into the body. Diamond shaped: The first stage in the dive. There are three main stages in the dive before the peregrine falcon comes out of the dive and attacks its prey. This adjustment allows the falcon to move faster and faster in its pursuit.
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