Weir Preserve and Weir Farm National Historic Site will host their 25th annual Halloween Owl Prowl on Friday evening, Oct. 13, from 7:30 to 9.

“Owlers” will gather in the Burlingham Barn at Weir Farm National Historic Site, 735 Nod Hill Road, for a presentation by Frank Gallo on owls that live in this area.

Gallo is director, Coastal Center at Milford Point, of the Connecticut Audubon Society. Using slides and props, he will review the characteristics that make owls such effective raptors of the night. He will also discuss some of the mythology that has evolved around owls.

Following his presentation, the group will proceed to nearby fields and listen closely as Gallo calls to screech owls, barred owls and great horned owls. On previous occasions all three have responded to Frank’s calls, and there have been numerous sightings. Participants should dress for the outdoors and bring a flashlight.

Parking for the event will be on-site. Drivers should watch for park rangers in reflective vests who will direct participants to the parking area.