On our trip from Baddeck, NS to St John, NB, we took a break and visited the Sackville Waterfowl Park.
This wetlands boardwalk area is probably the nicest waterfowl area I've ever been to!
Wished we'd allowed a couple of days in this area.
Long or Short-billed Dowitchers; or Greater/Lesser Yellowlegs (?). See 'previous' two images.
I'm siding with Pierre on this ID.