Also nowadays the lights are observed occasionally, they have been taken on movies and photographed.
It has been occasionally observed that the female may absorb the eggs back into her system.
Snowfall is observed occasionally and most years do not see any accumulation.
The majority of food is obtained from the ground, with birds occasionally observed feeding on ripening fruits among tree branches.
It does not make a nest and has been observed occasionally to be sleeping in well protected rock ledges during the day.
Other minor belts and zones in the region are occasionally observed.
This is observed occasionally when one experiences the beginning of a rain shower, or and increase in the rainfall, after a lightning stroke.
Cannibalism is also observed occasionally when the animal is coming out of hibernation.
A few transport and light communications aircraft were occasionally observed on the airfield, but there was comparatively little flying.
They can also be occasionally observed perching on wet rocks.