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The flight zone is determined by the animal's flight distance, sometimes called flight initiation distance (FID) which extends horizontally from the animal and sometimes vertically. It may also be termed [citation needed] escape distance, alert distance, flush distance, and escape flight distance.
Studies have shown that it is physically possible for flying animals to reach 18-metre (59 ft) wingspans, but there is no firm evidence that any flying animal, not even the azhdarchid pterosaurs, got that large.
The flight zone is the distance within which a person can approach an animal before it moves away. Herd animals usually turn and face a potential threat when it is outside of their flight zone, but when it enters the flight zone, the animal turns and moves away.
25 sie 2008 · Flight distance of adult birds when approached by a human being varied significantly among species, with mean distance explaining interspecific variation in population trends in Europe, with a large effect size of 0.36–0.58 depending on the analysis.
The flight zone is the animal's personal space, and the size of the flight zone is determined by the wildness or tameness of the animal. Completely tame animals have no flight zone and people can touch them.
The space, often called a flight distance, will vary with a number of things including the species in question, familiarity with the animal(s) entering the space, the particular fear level of the focus animal, among many other factors.
Gliding flight is heavier-than-air flight without the use of thrust; the term volplaning also refers to this mode of flight in animals. It is employed by gliding animals and by aircraft such as gliders. This mode of flight involves flying a significant distance horizontally compared to its descent and therefore can be distinguished from a ...
