Grey sea eagle and Sea eagle

Grey sea eagle noun - Bulky greyish-brown eagle with a short wedge-shaped white tail; of Europe and Greenland.

Sea eagle and grey sea eagle are semantically related. In some cases you can use "Sea eagle" instead a noun phrase "Grey sea eagle".

Sea eagle noun - Large harmless hawk found worldwide that feeds on fish and builds a bulky nest often occupied for years.

Grey sea eagle and sea eagle are semantically related. Sometimes you can replace phrase "Grey sea eagle" with "Sea eagle", this phrases are similar.