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.
Loon is aquatic bird that belongs to the family Gaviidae. It can be found in the North America, Europe and Asia. Loon inhabits coasts of Atlantic and Pacific Ocean, lakes, ponds and various waterways. It is one of the oldest and most primitive birds on the planet.