WORCESTER — Members of the Planning Board said Wednesday they liked the idea of reviving a discussion about allowing residents to have chickens. The board didn't make a recommendation on a petition from resident Brian Grinnan asking for chickens to be allowed in areas of the city zoned for single family residences, but continued the discussion, and spoke favorably about allowing poultry to be raised in the city as a way to complement the city's urban agriculture ordinance. Grinnan's petition recently went before the City Council, and was sent to the Planning Board for a recommendation. Staff Wednesday recommended the board recommend that the council not adopt the ordinance allowing chickens in RS-7 zones because of a lack of detail and specificity, but told board members that staff could draw up a decision that signaled their support for a more in-depth look at the possibility of passing a more comprehensive ordinance.