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.
Large birds - crows, , birds of prey- regularly live for 10 years and more in the wild and 20-40+ years in an aviary. Many seabirds live for 20-50 years in the wild. Large species of parrot routinely live for over 20 years in the wild and over 50 in an aviary. Normal clutch size and age at sexual maturity are excellent indicators of mortality rate/life expectancy. Cranes and large birds of prey will not breed until 3-4-5-6 years old and rear only 1 or 2 chicks in one year.