The western jackdaw is found from north-west Africa through all of Europe, except for the extreme north, and eastwards through central Asia to the eastern Himalayas and Lake Baikal. To the east, it occurs throughout Turkey, the Caucasus, Iran, Iraq, Afghanistan, Pakistan, and north-west India.he common name jackdaw first appeared in the 16th century, and is thought to be a compound of the forename Jack, used in animal names to signify a small form (e.g. jack snipe), and the archaic native English word daw. Formerly, western jackdaws were simply called daws.
What Causes Muscle Cramps in the Calves? Leg cramps can be caused by many conditions, ranging simply from dehydration to something much more serious such as kidney disease, said physical therapist Matthew Hyland, president of the New York Physical Therapy Association and co-owner of Rye Physical Therapy & Rehabilitation.
Causes. Most of the time, night leg cramps occur for no known reason, and they're usually harmless. In general, night leg cramps are likely to be related to muscle fatigue and nerve problems. The risk of having night leg cramps increases with age.Pregnant women also have a higher likelihood of experiencing night leg cramps.estless legs syndrome (RLS) is sometimes confused with night leg cramps, but it's a separate condition. In general, pain is not a main feature of RLS, but RLS could be the cause of night leg cramps. Other conditions that may sometimes be associated with night leg cramps may include: Structural disorders.