Oct. 24 at 7 p.m., join the Assabet River National Wildlife Refuge Visitor Center, 680 Hudson Rd., Sudbury, for a Kestrels and Cranberries program. American kestrels are declining in numbers in Massachusetts. Did you know that kestrels prefer nesting around cranberry bogs? Hear from Joey Mason who has worked for 23 years to conserve these small falcons and other birds of prey in southeastern Massachusetts. She will explain their nesting preference, describe their diet and her experiences monitoring nest boxes. Joey will bring in a live male Merlin and two Kestrels for viewing up close.? Her efforts locally to help birds of prey include retrofitting utility poles and producing a guide to better manage methane burners in landfills to reduce injury or death to raptors. Take a look at www.keepingcompanywithkestrels.org to learn more. Free and open to the public.