One of the main things I've learned about photographing shorebirds is that when there are decent numbers feeding along the waters edge, the best strategy is to find a spot and quietly wait until they come to you. Many birds will continue their path of following the shoreline and will simply ignore you if you are quiet enough. Larger shorebirds can be much more wary, but if you search long enough you are bound to find a more trusting individual. Birds in a roosting flock are generally much more wary than feeding birds and usually cannot be approached close enough for photography. If birds are not concentrated along a shoreline, crawling close to them on your belly can also yield results, though it is not the most comfortable of options.
This morning shorebird numbers at Wollaston were lower than they usually are when I'm there. This was probably because the tide was very low, meaning the birds would be much more spread out. I got my first really good picture of a Least Sandpiper at my usual spot but there was practically no other action so I walked a bit. As I walked I saw an immature Black-crowned Night-Heron fly over the estuary from the ocean side. I made it over to the mouth of Blacks Creek that connects to the estuary and there were some more birds there. There were a few Semipalmated Plovers, Semipalmated Sandpipers, more Least Sandpipers, Greater and Lesser Yellowlegs, two Green Herons, and a Sharp-shinned Hawk that put all the birds just mentioned into the air. Also in the area was a small group of Mallards and a Spotted Sandpiper.
Complete list of birds here: http://ebird.org/ebird/view/checklist?subID=S11360786
Below are recent pictures from today and the past week.