CREATE TABLE table_6067 ("Player" TEXT, "Position" TEXT, "Date of Birth  ( Age ) " TEXT, "Caps" FLOAT, "Club/province" TEXT)

What is the lowest number of caps of the fullback player born on 13 April 1983?
SELECT MIN("Caps") FROM table_6067 WHERE "Position" = 'fullback' AND "Date of Birth (Age)" = '13 april 1983'
SELECT MIN("Caps") FROM "table_6067" WHERE "Date of Birth (Age)" = '13 april 1983' AND "Position" = 'fullback'