The bald eagle selects migration routes which take advantage of thermals, updrafts, and food resources. They spend much time soaring and gliding in thermals in search of food. Hawks avoid flight over water since warm thermals that provide lift are rare. Like other storks, they are often seen soaring on thermals. During the breeding season pairs will soar on thermals and stoop at each other. It is sometimes seen soaring in thermals. Large numbers may be seen soaring in thermals over cities. Emphasis was on rugged construction, good climbing ability in thermals and good handling characteristics. This decreases the amount of sunlight reaching the ground and prevents new thermals from forming. These migration corridors maximise help from the thermals and thus save energy. The Thermals and drummer for the All Girl Summer Fun Band. The Thermals on legendary riot grrrl label Kill Rock Stars. They can commonly be seen taking advantage of thermals from the M40 motorway. As a result, plenty of thermals commenced over time. Contest strategy includes determining the location of thermals before the pilot launches.