Reply To: I need advice on Chickadee nesting Home › Forums › Bluebird Chatter › I need advice on Chickadee nesting › Reply To: I need advice on Chickadee nesting May 17, 2016 at 4:53 pm #1941 dogsandbirdsModerator Sadly a 1 & 1/8 will admit a HOSP. I do use that size to keep out EABL if a CACH starts in a box of mine. Gin Atlanta, GA
