S&K Crescent Door Plugs, Set of 12 bird house on pole 25" diameter entrance hole leads

25" diameter entrance hole leads to a spacious 6

the sleeve can be cemented into soil for use for several martin seasons

Each of the twelve trapezoid-shaped apartments measures 9" wide at the front

This handy pack of 4 gourds lends delightful martins a safe and reliable set of roosts

Mounting: attach to Mini-Castle Safety System house (not included)

S&K Crescent Door Plugs, Set of 12 bird house on pole 25" diameter entrance hole leadsEasily close the starling resistant entrance doors on one of your existing S&K purple martin houses with these S&K Crescent Door Plugs. This set of 12 plugs easily covers the starling resistant openings on your existing S&K American Barn, Heavenly Haven, Farm and Home, Natural Gourd, or classic Purple Martin house (not included), allowing you to leave the shelter in place during the winter without fear of starlings or sparrows overtaking it. The