Here are a few good locations for anybody who decides to skip the boat trip on 9/29. Page numbers below are from "Birding Cape Cod" 2005.
BEECH FOREST: (pages 125-128)
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Access to the parking lot is off Race Point Road, about half a mile NW of route 6.
HIGH HEAD, SMALL SWAMP & PILGRIM HEIGHTS: (pages 122-124)
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Exit Rte 6 on High Head Road (in North Truro, just outside Provincetown), fork left before the hill, and park at the end of the dirt road. Walk along the bike path in search of skulkers, and work your way around Small's Swamp and then explore High Head. Look for local birds and autumn migrants. Thanks to David Clapp for info regarding this site.