If you saw larks that were flying in a dream, then such dream indicates huge expectations. Perhaps you have a vision of what you wish to achieve. When you see the larks that are falling down, then such dream indicates the desperation which will come unexpected. If you heard the larks in a dream, then such dream promises great professional endeavors. Perhaps you will get the success without much of the effort. If the larks are dead in a dream, then it symbolizes the sorrow and grief. When you kill the lark, then it shows the mistakes you will do.
Read more about dreaming of Lark in other dream meanings interpretations.