Claudio Contreras / Semipalmated Plover (Charadrius semipalmatus), Bahia Magdalena, Baja California Peninsula, Mexico, June

Lynn M. Stone / Semipalmated plover (Charadrius semipalmatus) on mud bar at low tide, St. Petersburg, Florida, USA. April.

Nick Hawkins / Semipalmated plover (Charadrius semipalmatus) on sand beaches of Borgle's Island, Nova Scotia, Canada, September.

Gerrit Vyn / Semipalmated plover (Charadrius semipalmatus). Ocean Shores, Washington, USA, May.

Tim Laman / Semipalmated plover (Charadrius semipalmatus) foraging at low tide on mudflats of the Orinoco River Delta, Venezuela.

Tim Laman / Semipalmated plover (Charadrius semipalmatus) foraging at low tideon mudflats of the Orinoco River Delta, Venezuela.

Paul Hobson / Semipalmated plover (Charadrius semipalmatus) winter plumage, Florida, USA, February.

Ernie Janes / Semipalmated plover (Charadrius semipalmatus) with Sanderlings (Calidris alba) behind, Fort Myers Beach, Gulf Coast, Florida, USA, March.

Ernie Janes / Semipalmated plover (Charadrius semipalmatus) on beach, Fort Myers Beach, Gulf Coast, Florida, USA, March.

Ole Jorgen Liodden / Semipalmated plover (Charadrius semipalmatus) foraging on beach, Galapagos

Tui De Roy / Semipalmated plover (Charadrius semipalmatus), migrant on wintering grounds, Galapagos

Bertie Gregory / Semipalmated plover (Charadrius semipalmatus) foraging on a beach at sunset, Vancouver Island, British Columbia, Canada, July.

Eric Baccega / Semi palmated plover (Charadrius sempalmatus) on beach stretching wings, British Columbia, Canada, June.

Eric Baccega / Semi palmated plover (Charadrius sempalmatus) on beach, British Columbia, Canada, June.

Todd Mintz / Semipalmated plover (Charadrius semipalmatus) calling to lead predators away from nest, Grise Fiord, Ellesmere Island, Nunavut, Canadian Arctic, March

Todd Mintz / Semipalmated plover (Charadrius semipalmatus) eggs and nest, Grise Fiord, Ellesmere Island, Nunavut, Canadian Arctic, June

Ernie Janes / Semipalmated plover (Charadrius semipalmatus) on beach, UK. March

Ernie Janes / Semipalmated plover (Charadrius semipalmatus) on beach, UK. March

Eric Baccega / Semipalmated sandpiper (Calidris pusilla) foraging for food on the beach, St Lawrence gulf, Kouchibouguac National Park, New Brunswick, Canada, September

Eric Baccega / Semipalmated plover (Charadrius semipalmatus) walking on shoreline, St Lawrence gulf, Kouchibouguac National Park, New Brunswick, Canada, September

Eric Baccega / Semipalmated plover (Charadrius semipalmatus) feeding on a shrimp, St Lawrence gulf, Kouchibouguac National Park, New Brunswick, Canada, September

Eric Baccega / Semipalmated plover (Charadrius semipalmatus) feeding on a shrimp, St Lawrence gulf, Kouchibouguac National Park, New Brunswick, Canada, September

Eric Baccega / Semipalmated plover (Charadrius semipalmatus) walking on shoreline, St Lawrence gulf, Kouchibouguac National Park, New Brunswick, Canada, September

Eric Baccega / Semipalmated plover (Charadrius semipalmatus) foraging on shoreline, St Lawrence gulf, Kouchibouguac National Park, New Brunswick, Canada, September

Eric Baccega / Semipalmated plover (Charadrius semipalmatus) foraging on shoreline, St Lawrence gulf, Kouchibouguac National Park, New Brunswick, Canada, September

Eric Baccega / Two Semipalmated plovers (Charadrius semipalmatus) foraging on shoreline, St Lawrence gulf, Kouchibouguac National Park, New Brunswick, Canada, September

Eric Baccega / Semipalmated plover (Charadrius semipalmatus) foraging for food on beach, St Lawrence gulf, Kouchibouguac National Park, New Brunswick, Canada, September

Eric Baccega / Semipalmated plover (Charadrius semipalmatus) walking on sand, St Lawrence gulf, Kouchibouguac National Park, New Brunswick, Canada, September

Eric Baccega / Tracks of Semipalmated plover (Charadrius semipalmatus) in sand, St Lawrence gulf, Kouchibouguac National Park, New Brunswick, Canada

Eric Baccega / Tracks of Semipalmated plover (Charadrius semipalmatus) in sand, St Lawrence gulf, Kouchibouguac National Park, New Brunswick, Canada

Visuals Unlimited / Semipalmated Plover (Charadrius semipalmatus) North America.

Gerrit Vyn / Semipalmated plover (Charadrius semipalmatus) in breeding plumage, on sandy coastline, Seward Peninsula, Alaska, USA, June.

Luiz Claudio Marigo / Semipalmated plover (Charadrius semipalmatus) feeding in mangrove, near Grossos town, Rio Grande do Norte State, Northeastern Brazil.

Gerrit Vyn / Adult female Semipalmated Plover (Charadrius semipalmatus) on river ice. Seward Peninsula, Alaska, USA, May.

Tim Laman / Semipalmated Plover (Charadrius semipalmatus) foraging on mudflats, Barrancones Bay, Waterloo, Trinidad.

Thomas Lazar / Semipalmated plover {Charadrius semipalmatus} at nest with eggs, USA

Louis Gagnon / Semipalmated plover {Charadrius semipalmatus} Anticosti Is, Quebec, Canada

Tom Vezo / Semi-palmated plover {Charadrius semipalmatus} walking on sea shore, Long Island, New York, USA

Tom Vezo / Semi-palmated plover {Charadrius semipalmatus} sitting on nest, Long Island, New York, USA

Tom Vezo / Semi-palmated plover {Charadrius semipalmatus} standing in shallow water, Long Island, New York, USA

Tom Vezo / Semi-palmated plover {Charadrius semipalmatus} standing on sea shore, Long Island, New York, USA

Tom Vezo / Semipalmated plover. {Charadrius semipalmatus} Nome, Alaska, USA.

Matthias Breiter / Semipalmated Plover (Charadrius semipalmatus) portrait, side view, Katmai National Park, Alaska

Patricio Robles Gil / Semipalmated Plover (Charadrius semipalmatus) portrait, Northwest Territories, Canada

Steve Gettle / Semipalmated Plover (Charadrius semipalmatus) preening, northern Michigan

Steve Gettle / Semipalmated Plover (Charadrius semipalmatus), northern Michigan

Steve Gettle / Semipalmated Plover (Charadrius semipalmatus), northern Michigan

Donald M. Jones / Semipalmated Plover (Charadrius semipalmatus), southern Alaska