Birds - represent thoughts, freedom and abandon(leaving behind old or restricting thoughts and ideas). Birds in flight symbolize moving and changing thoughts,.. symbolic of spiritual, psychological, or physical freedom.

Birds in the colors of the Union Jack would suggest you are feeling restricted by the governing laws that pertain to the UK or similar countries that hold the same laws, and you would like to be free from those restrictions.
Alternatively, it could be that you're feeling freedom within those laws, that other countries are more strict and confining.
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Have you been thinking about a career in politics, possibly wanting to change some laws to allow more freedom within a specific area?
Have you recently been to another country whose laws, or government, is restricted or confined and that you feel they would benefit from laws or a government similar to that of the UK?

Hope this helps, best of luck!