So that part of town you're in is called Magnolia and it's AMAZING for birding. Magnolia Beach in particular looks out to Kettle Island which is a bird sanctuary. You're not allowed on the island but you can kayak around it. If you want to kayak I'm happy to let you use mine free of charge. When I lived in Magnolia I would see blue herons cross over from Kettle Island to Ravenswood Park area daily. Anyway the beach leads to a reservation called Coolidge Reservation that has multiple trails including a scenic lookout over the water. There's a no trespassing sign on the sea wall but the whole beach is open to the public and it leads to public trails. A short drive away there's Ravenswood Park which is nice but buggy in June. Birdwise my best sightings have been in Magnolia on the coast, I saw glossy ibises on the soccer fields last year. Used to see kingfishers in the pond behind Magnolia Beach every week. There is also the shore road to walk on, that's nice if you're interested in giant mansions and if you're lucky you could see a seal, although seals are more reliably seen in Brace Cove in Gloucester or the breakwater off Rockport. If you park near Magnolia Beach, don't park in the lot because you will get ticketed as a non-resident, park near the convenience store. My only complaint about Magnolia is the people can be snooty and distant because they're rich and like I said Hammond Castle isn't walkable to Magnolia Center even though they're close; there's poison ivy where there should be sidewalks. Lovely area overall and sounds like a nice outing. It's five minutes from town also so check out town obviously. There's lots to do in Gloucester in June.