Mosquitoes are amazing biological drones, will find a victim by breath and skin smell (ie. toes), will conceal on dark surfaces from a distance so they have a space model of their victim's location, they also search for holes in clothing and bite thru it if possible. If they get too full of blood and heavy will walk to a safe location, will dodge attacks from larger animals, and begin a erratic flight pattern and free-falls to get lost. Also they are born with enough energy to fly a considerable distance.