The main problem I had combining the themes, bird and trees, was that I have too many choices.
I decided to narrow it down by picking one shot per year of a bird or bird(s) in a tree or trees.
I took the first shot on December 27, 2010; the second on May 28, 2011 and the third on November 23, 2012.
I didn't spend a lot of time trying to pick the best shots but I picked ones that mean something to me for different reasons.
I took the fourth shot on January 21, 2013 and the fifth shot on March 25, 2014.