<P> The Cocrico (Ortalis ruficauda), also known as the "Chachalaca," is a rufous - tailed, tropical pheasant indigenous to Tobago . They tend to inhabit the higher areas of the island amidst the forest and sometimes the dry scrubby lands bordering cultivated areas . Cocricos are known for sounding a loud, grating chorus at dawn and dusk . The sound is a raucous cocricó repeated several times, hence the name of the bird . The Scarlet Ibis and the Cocrico are only two of over 400 species of birds recorded in Trinidad and Tobago . </P> <Tr> <Td> National Instrument </Td> <Td> (The steeldrum (pan) is the national musical instrument of Trinidad and Tobago developed in the late 1930's . The pan is the only original non-electronic musical instrument invented in the twentieth century .) </Td> <Td> rior to the invention of pan, lengths of bamboo were used during street parades to beat out rhythms and these bands were known as' Tamboo Bamboo Bands' . In the quest of a cleaner sound, old biscuit tins and caustic soda pans were first used to replace the bamboo . Spree Simon and Ellie Manette are considered the pan pioneers in developing this steeldrum to what it is today . </Td> </Tr> <Tr> <Td> National Motto </Td> <Td> "Together We Aspire, Together We Achieve ." </Td> <Td> The national motto was established by the late first Prime Minister Dr Eric Williams, when Trinidad and Tobago achieved independence in 1962 . </Td> </Tr> <Tr> <Td> National WatchWords </Td> <Td> Discipline, Production, Tolerance . </Td> <Td> The national Watchwords was established by the late first Prime Minister Dr Eric Williams, when Trinidad and Tobago achieved independence in 1962 . </Td> </Tr>

Who wrote the national motto of trinidad and tobago