A high white blood cell count, also known as leukocytosis, signifies an infection or another untreated medical condition. A high white blood cell count is generally considered to be a count of 10,500 leukocytes per microliter of blood, although this depends on age and and gender, especially in children.
Birds live in diverse habitats: deserts, mountains, forests, tundras, near the bodies of water, etc. A lot of birds never leave their living places, the others migrate to warmer countries when the weather changes. Migrations may be tens of thousands of kilometers long. Most birds can fly by means of feathered wings.
A hummingbird's only natural habitat (the place where they live) is in the America's. Their range is as far north as Alaska and as far south as Chile. Most hummingbirds live in the South America. (See the Hummingbird Habitat Maps by clicking the link on the left side of the screen. There are over three hundred (300) types or species of hummingbirds making hummingbirds the second largest species of bird in the Western Hemisphere.