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.
The pine marten has a Palearctic distribution: its geographic range extends from western Siberia across Russia and Europe to Scotland and Ireland, and from the northern limit of the boreal or coniferous forest in the north to the Mediterranean and the Caucasus region in the south.