Crocethia alba and Sandpiper

Crocethia alba noun - Small sandpiper that breeds in the Arctic and migrates southward along sandy coasts in most of world.

Sandpiper and Crocethia alba are semantically related. In some cases you can use "Sandpiper" instead a noun phrase "Crocethia alba".

Sandpiper noun - Any of numerous usually small wading birds having a slender bill and piping call; closely related to the plovers.

Crocethia alba and sandpiper are semantically related. Sometimes you can replace phrase "Crocethia alba" with "Sandpiper", this terms are similar.