Helicopters can hover over the fire and drop water or retardant. All species will hover to catch flying insects. Some early underpowered helicopters could only hover close to the ground. Still, average temperatures during a typical winter hover just above freezing at these locations. Twelve extraterrestrial spacecraft silently hover over disparate locations around the Earth. Average temperatures hover around zero degrees Celsius during the winter. Oftentimes, they hover by the nest without landing. They are able to hover briefly to catch prey. She can also slide, hover, and roll. A dove, the symbol of the Holy Spirit may hover above. Many insects can hover, maintaining height and controlling their position. Temperatures usually hover around , sometimes dipping to . Hover over each circuit for captions. Daytime temperatures hover around and occasionally make it to 20, and overnight around . This may require an aircraft that can hover at and cruise at .