Given what he knew about the viscount's nocturnal habits, this was something of a miracle.

However, only day roosts studies were performed, and further research into their nocturnal habits may be required.

It has nocturnal habits and is becoming very rare.

The monks are not alone in their nocturnal habits.

The term is derived from the primarily nocturnal habits of the owl.

Their nocturnal habits lead them to seek food largely by smell.

Carmilla had nocturnal habits, but was not confined to the darkness.

This nocturnal habit requires the Angels to remain on duty around the clock.

The color, special ability, and nocturnal or diurnal habits are also selected.

Due to its probably nocturnal habits it had large eyes.