HAPPENIN’ OTSEGO for WEDNESDAY, AUGUST 16 Saxalicious Sax Quartet Performs In Richfield Springs CONCERT—7 p.m. Saxalicious Sax Quartet. Free; rain or shine. Part of the Richfield Concert in the Park series. Spring Park, State Route 20, Richfield Springs. FOOD SERVICE—Noon to 1 p.m. Children receive free food. Open to all children through age 18. Other activities include a bookmobile and games. Held Monday through Friday in July and August. Neahwa Park, Oneonta. (607) 432-0061 or visit http://www.charitiesccdos.org/SFSP.html…