The Isle of Seabirds was a location in the early version of the legendarium in The Book of Lost Tales. It was located in the northern waters, not far from Falasquil, being the place where "all the birds of all waters come at whiles". Eärendel sailed there with Voronwë after learning that Elwing had been transformed into a seabird. He hoped to find her there among the birds, but she looked for him elsewhere. He dwelt there for "three times seven years" until he sailed in his last travel to the margin of the world. In the last outline of "The Tale of Eärendel", his waiting is successful, as Elwing comes to him as a seamew. The isle had a tower, but it is not said if Eärendel built it.