According to my Birds of North America field guide this was a Bristle-Thighed Curlew. A description follows: Winters on central Pacific islands (March was cold there!) Told from Wimbrel by contrast between bright-rusty rump and tail and someber brown back, note also the paler bill. Okay, you 'birders' out there, do you see the rust on the rump and tail? Do you see the pale bill? Would you consider the island of Hawaii a Pacific Island?