Eric Sohn Joo Tan/ BIA / Black-winged Lapwing (Vanellus melanopterus) calling during defensive display, KwaZulu-Natal, South Africa

Rob Drummond/ BIA / Pied Oystercatcher (Haematopus longirostris), Victoria, Australia

Alan Murphy/ BIA / Killdeer (Charadrius vociferus) in broken wing display, Texas

Sebastian Kennerknecht / Snowy Plover (Charadrius nivosus) biologist, Ben Pearl, picking up chick from mud flat in salt pond, Eden Landing Ecological Reserve, Union City, Bay Area, California

Greg Oakley/ BIA / Red-capped Plover (Charadrius ruficapillus) on beach, New South Wales, Australia

Michael Milicia/ BIA / Piping Plover (Charadrius melodus) in broken wing display, Massachusetts

Michael Milicia/ BIA / Piping Plover (Charadrius melodus) stretching, Massachusetts

Michael Milicia/ BIA / Piping Plover (Charadrius melodus) with chick, Massachusetts

Gerrit Vyn / Pacific golden-plover (Pluvialis fulva) male performing distraction display pretending to have broken wing, Yukon Delta National Wildlife Refuge, Alaska, USA. June.

David Williams / Mongolian Plover (Charadrius mongolus) running, Thailand

Greg Oakley / Sooty Oystercatcher (Haematopus fuliginosus), Victoria, Australia

Donald M. Jones / American Avocet (Recurvirostra americana) in pond, central Montana