Near the tip of World's End there was a huge flock of Common Terns and Double-crested Cormorants, at least one hundred of each species. The terns were confusing since there were many birds in breeding plumage, a few non-breeding, and many juveniles. There weren't many shorebirds at all, though there were a few Killdeer on the beach at low tide, Least Sandpipers here and there, and four Oystercatchers.
On Bumpkin Island I saw at least three Coopers Hawks, possibly up to five. All of the ones I got good looks at were immatures and two of them flew to the mainland while I watched. Another chased away a group of about ten crows from the top of a tree. On Bumpkin there was also a male Black-bellied Plover.
While out over open water a hummingbird zoomed by, heading straight across the bay.
For a full list of species: http://ebird.org/ebird/view/checklist?subID=S11456770
Also check out my new taxonomic list of bird species I have photographed. It is meager now and will take a while to fill out. You can find the page under the drop down menu for Photography, and then under Birds.