Doug Wechsler / Dunlin (Calidris alpina) and Short billed dowitcher (Limnodromus griseus) feeding on Horseshoe crabs (Limulus polyphemus) eggs, Delaware Bay, New Jersey.

Doug Wechsler / Dunlin (Calidris alpina), Semipalmated sandpipers (Calidris pusilla) and Short-billed dowitcher (Limnodromus griseus) feeding on horseshoe crab eggs, Delaware Bay, New Jersey, USA, May.

Doug Wechsler / Dunlin (Calidris alpina), Semipalmated sandpipers (Calidris pusilla) and Short-billed dowitcher (Limnodromus griseus) feeding on horseshoe crab eggs, Delaware Bay, New Jersey, USA, May.

Gerrit Vyn / Short-billed Dowitcher (Limnodromus griseus) on mudflats. Grays Harbor County, Washington. May.

Roger Powell / Short-billed dowitcher (Limnodromus griseus) walking along the sandy tideline, Cedar Key, Levy County, Florida, USA, April

Roger Powell / Short-billed dowitchers (Limnodromus griseus) migratory flock on the tideline, Cedar Key, Levy County, Florida, USA, April

Roger Powell / Short-billed dowitchers (Limnodromus griseus) among other migrant shorebirds, Cedar Key, Levy County, Florida, USA April

Melvin Grey / Short-billed dowitcher (Limnodromus griseus) adult, Churchill, Manitoba, Canada

Melvin Grey / Short-billed dowitcher (Limnodromus griseus) adult, Churchill, Manitoba, Canada, May.

Tim Zurowski / Long-billed Dowitcher (Limnodromus scolopaceus) foraging, British Columbia, Canada

Tim Zurowski / Long-billed Dowitcher (Limnodromus scolopaceus) foraging, British Columbia, Canada

Pete Oxford / Short-billed dowitcher (Limnodromus griseus) Little St Simon's Island, Barrier Islands, Georgia, USA, April.