Some appear to have met their demise of natural causes....it was just their time. Others, seemingly in their prime, appear to have had some unnatural assistance. Still others appear to have bent...and bent...and bent yet again until there was no bend left and s-n-a-p they went. 

Never again will a bird build a nest in their arms. Never again will they filter the air we breathe. Never again will their roots help slow the erosion of the soil that surrounds them. Never again will they slow a gust of wind. Never again will they participate in the Mardi Gras of autumn colors. Never again will their summer garb of green contribute to the oasis of shade their canopy provides for the teeming life below.