From the U.S. Fish and Wildlife Service's online digital media library.
Check http://images.fws.gov/ for higher quality version, and http://www.fws.gov/help/policies.html for copyright information.

Metadata
Title: Rock Sandpiper
Alternative Title: Calidris ptilocnemis
Creator: Rhode, Elaine B.
Source: SL-01793
Publisher: (none)
Contributor: ASSISTANT REGIONAL DIRECTOR-EXTERNAL AFFAIRS
Language: EN - ENGLISH
Rights: (public domain)
Audience: (general)
Subject: Birds, Shorebirds, Alaska Maritime National Wildlife Refuge, Aleutians, Rat Islands, Amchitka Island
Date Created: June 15 1976