Longlegs and Shore bird

Longlegs noun - Long-legged three-toed black-and-white wading bird of inland ponds and marshes or brackish lagoons.

Shore bird and longlegs are semantically related. In some cases you can use "Shore bird" instead a noun "Longlegs".

Shore bird noun - Any of numerous wading birds that frequent mostly seashores and estuaries.

Longlegs and shore bird are semantically related. Sometimes you can replace term "Longlegs" with "Shore bird", this terms are similar.