NEW WINSOR-Environmental writer Wayne Hall will be guest speaker at the next meeting of the Stewart Park and Reserve Coalition (SPARC) at 7:30 p.m. on Wednesday, Feb. 23, at the Community Room of the Bethlehem Presbyterian Church. His program is titled "Uninvited Guests" (Or the Downside of Land Disturbance). Hall has been a journalist for 40 years, mostly with The Times Herald Record. He writes a regular column on people and issues on the environment in the Mid-Hudson. He was born in Mineola, Long Island, to a family with Southern roots, but has lived in the Mid-Hudson for most of his life. He's been a birder since age 13 and now collects. The event is free and open to the public. Light refreshments will be served. The church is located at the corner of Rt. 94 and Jackson Ave. in New Windsor. For more information call 564-3018.