Wind speed and wind direction are also measured concurrently using an anemometer and wind vane as these variables can influence the behaviour as well as the speed of the animal relative to the observer.
(Wind speed and wind direction; are also measured concurrently; using an anemometer and wind vane as these variables can influence the behaviour as well as the speed of the animal relative to the observer) (these variables; can influence; the behaviour as well as the speed of the animal relative to the observer)
Wind speed and wind direction these variables
are also measured concurrently can influence
using an anemometer and wind vane as these variables can influence the behaviour as well as the speed of the animal relative to the observer
the behaviour as well as the speed of the animal relative to the observer