In years when Cory's Shearwaters are recorded close to shore off Gooseberry Neck, MA, and Jamestown, RI, many are found in Vineyard Sound, as far north as Quicks and Robinsons Holes between the Elizabeth Islands. During these occurrences, there are a few in the Buzzards Bay waters off Pasque and Nashawena Islands. I've never seen Cory's farther north. It's possible that the Cory's Shearwaters off Gooseberry Neck were in Vineyard Sound later that day or the next.
In June, Sooty Shearwaters can be seen as far north as 2-3 miles off the shore of West Falmouth Harbor in upper Buzzards Bay.
In fall and early winter, Northern Gannets are common in upper Buzzards Bay, as far north as Bourne and into the Cape Cod Canal. I have photos of gannets flying over my head as I walked the shoreline in Falmouth.
From: <massbird-approval...> [mailto:<massbird-approval...>] On Behalf Of Liam Waters Sent: Saturday, July 22, 2017 10:27 PM To: <massbird...> Subject: [MASSBIRD] Gooseberry Neck (Westport) shearwater phenomenon
For those of you who do not receive eBird alerts, I'm sorry this is so belated.
There has been a very unusually large concentration of shearwaters (almost entirely Cory's) passing by the tip of Gooseberry neck each morning. Yesterday, there was a very surprising AUDUBON'S SHEARWATER and 2 distant Sooty's, mixed in with 9 Greats and 636! Cory's. (Complete list and comments http://ebird.org/ebird/view/checklist/S38247290)
Today, we had a very slow start with the first shearwaters not arriving until 6am, and numbers not building until just after 7am. However, then the floodgates opened and we had a constant stream of birds moving by for another 2 hours (they were still moving when we left, but had slowed down drastically). (All this is in sharp contrast to previous mornings where birds were moving at dawn, and peak was between 6 and 7, with very little after 8am.) We ended today with 1397(!!!) Cory's, 5 Greats, and 4 Manx. (List with comments http://ebird.org/ebird/view/checklist/S38247290)
We do not know when this started, but it potentially has been happening for a while now. I was there midday on June 30th and had 21 Cory's and 1 Great (http://ebird.org/ebird/view/checklist/S37888489) so I would guess that there has been near daily movement at least since then.
No one knows where these birds are going, so if anyone has the time to look anywhere along Buzzards Bay, I would love to know the outcome (positive or negative).