Stork and White stork

Stork noun - Large mostly Old World wading birds typically having white-and-black plumage.

White stork and stork are semantically related. In some cases you can replace phrase "White stork" with "Stork", this terms are similar.

White stork noun - The common stork of Europe; white with black wing feathers and a red bill.

Stork and white stork are semantically related. You can use "Stork" instead a noun phrase "White stork".