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.
The average lifespan of first year birds is 1 - 1.5 years. First year birds have a mortality rate of 60 - 75 percent and adults have a mortality rate of 50 - 60 percent. For any songbird the first year of survival is the most difficult. If these birds survive their first year they can live on average 4 - 5 years. Predators include: hawks, snakes, squirrels, cats and hunters.