Wilson's snipe
From the archieves Wilson's snipe, Rondeau Provincial Park, Oct 6, 2016. Seen from the pontoon boat near the south end of the marsh. Gallinago delicata Wilson’s Snipe look so stocky thanks in part to the extra-large pectoral (breast) muscles that make up nearly a quarter of the bird’s weight—the highest percent of all shorebirds. Thanks to their massive flight muscles this chunky sandpiper can reach speeds estimated at 60 miles an hour. source - https://www.allaboutbirds.org/guide/Wilsons_Snipe