Why is Legolas disturbed by the sight and sound of sea gulls?

Answer 1

In LOTR book he recieves a message that he thinks tells of his death,

After Boromir was killed and Meriadoc Brandybuck and Peregrin Took were captured by Orcs in The Two Towers, Legolas, Aragorn, and Gimli set forth in pursuit of the two captured hobbits.[8] Legolas and his companions met a resurrected Gandalf in Rohan, who passed on a message from Galadriel - which he interprets as foretelling his death:

"...If thou hearest the cry of the gull on the shore,

Thy heart shall rest in the forest no more."

Now it might be that when he sees the ocean, ( and with all the gulls, you can't help but be near the ocean and hear sea gulls )

anyway, perhaps once he sees the Ocean he so falls in love with it, that he does NOT WANT to go back to the forest. So his heart would now lie with the beauty of the ocean environment.

But, he sees it as a omen fortelling of his death. So he does NOT like Sea Gulls.