I went on the Jim Baillie Memorial Bird Walk recently (May 22 2016) at Colonel Samuel Smith park.
It was an early start (7:30) and did not look too promising at the beginning. We made it to Whimbrel point at about 9:00 and after half an hour we had no luck spotting them. We wandered off and found other interesting birds like a Screech owl and Savannah sparrow.
Nearing the end, one of the participants who was on the verge of leaving stopped her car to tell us that some Whimbrels (Numenius phaeopus) had landed at the point. We walked over again and luckily they were still there. There was a group of 6 and one lone bird a number of yards away. They stayed until a passing canoe scared them off. A flock of about 200 also made a number of passes but did not land.