There are three major families of shorebirds: 1  Waders, about 220 species, include sandpipers, lapwings, snipes, plovers, stilts and various other species. These birds inhabit coasts and shorelines, as well as other open habitats. 2  Gulls, terns, skuas, jaegers and skimmers form a group of a little over 100 species.
The compass was probably invented in the Qin Dynasty (221-206BC) by Chinese fortune-tellers who used the lodestones to construct their fortune telling boards.
There is no exactly mentioned reord of when was the first compass ever used. According to historical records, compass is believed to be used at the time of Qin Dynasty(221-206 â¦ B.C). The earliest compasses were made of lodestones.