STAMFORD — A Humane Society official will answer questions at a public meeting Tuesday about a controversial deer cull at a North Stamford nature preserve. Annie Hornish, Connecticut director of the Humane Society of the United States, will talk about whether culling is a safe and humane tool for deer management. Hornish wrote a letter to the Stamford Land Conservation Trust asking to delay the bow hunt that began last Monday at the 145-acre Altschul Preserve.