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.
Range. Hummingbirds are found only in the Western Hemisphere, from southeastern Alaska to southern Chile, although most live in the tropics. There are more than 300 species of hummingbirds, 12 of which summer in North America and winter in tropical areas.ange. Hummingbirds are found only in the Western Hemisphere, from southeastern Alaska to southern Chile, although most live in the tropics. There are more than 300 species of hummingbirds, 12 of which summer in North America and winter in tropical areas.