An Aldehyde is an organic compound containing a terminal carbonyl group. This functional group, which consists of a carbon atom which is bonded to a hydrogen atom and double-bonded to an oxygen atom (chemical formula O=CH-), is called the aldehyde group.
Berchtesgaden-a town in Bavaria The town of Berchtesgaden is located near Hitler's Eagle's Nest (Kehlsteinhaus) and can be easily reached by train; there are several hotels and it is an inexpensive place for tourists to stay overnight.
Abundant almost everywhere in North America, crows start building their nests as early as March in warmer climate zones and as late as mid-July in colder ones. A few weeks before that, the family group, which may consist of two to nine related birds, returns to its usual nesting territory to scout out locations.