According to the Department of Education 180 is the minimum number of instructional days California requires of its public schools. The 180 days doesn`t include in-service days for teachers.
Loon, Arctic also Black-throated Loon also Black-Throated Diver Gavia arctica Found: North America (Alaska), Europe, Asia. The Arctic Loon has white underparts. Breeding has black back with white bars; black face; black sides of throat with white stripes; dark green throat.
With its brilliant red eyes and haunting call, the Common Loon is one of the most recognizable water birds in North America. A denizen of freshwater systems in the summer, it breeds throughout most of Canada and some parts of the northern United States, and migrates south along both the eastern and western North American shorelines each winter.