Editing Langstroth hive (section)

=== Outer cover ===
The outer cover is a metal, wooden or polystyrene cover that fits on the top of the hive. In higher latitudes<!-- (further north in the Northern Hemisphere; further south in the Southern Hemisphere) -->, a cover that telescopes down around the inner cover and an inch or so down over the top super, called a telescoping cover, is usually used. Many commercial beekeepers use what is known as a migratory cover, a solid cover that does not extend beyond the sides of a hive body.<ref>gobeekeeping, [http://www.gobeekeeping.com/lesson%20three.htm Basic Beekeeping&nbsp;— The Modern Hive] {{webarchive|url=https://web.archive.org/web/20041223045836/http://www.gobeekeeping.com/lesson%20three.htm |date=2004-12-23 }}, ''The Modern Hive'', Stahlman Apiaries. Accessed 19 July 2010.</ref>