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.
American martens, Martes americana, are found in the northern parts of North America. Martens are found from Newfoundland and Nova Scotia to Alaska. They are found sporadically in parts of California and in northern states, although loss of forests in these areas have reduced populations of martens since Colonial times.