To dream of the bird swallow means that you should try harder in your life instead of flying around. Otherwise, the dream shows that you wish to be free just like a bird.
Dream dictionary: Swallow (bird) dream meanings
…now and then, the most grotesque and extravagant attitude. I was wondering what he meant by these attitudes, when he came to an abrupt pause, and, stooping slightly forward, craned his neck in my direction, and began contorting his face in every conceivable shape, till at last he appeared all mouth. Rushing at me he was about to swallow me, when I awoke. I had this dream prior to a time when my affairs were singularly prosperous all round, which condition of things was undoubtedly presaged by the lark (a bird of exceptional good omen), by the carnations, pansies, forget-me-nots, and pink and white roses, by the clearness of the water in the river, and by the deep blue of the sea. I cannot attach any meaning to the figure and its strange antics; they form one of those apparently insoluble enigmas that so frequently occur in fantastic phantomania….
…To dream of these birds, is a good omen, as it foretells health and abundant crops to farmers: if you dream of killing a swallow, it is a sign of a misfortune; if you catch the bird, you will have splendid luck and get plenty of money; but if, after capturing, you dream you let him go, a fortune will slip through your fingers. Lucky lottery dream numbers – 25….