Thoreau's Journal: 15-Apr-1855
Returning, we had a fine view of a blue heron, standing erect and open to view on a meadow island, by the great swamp south of the bridge, looking as broad as a boy on the side, and then some sheldrakes sailing in the smooth water beyond. These soon sailed behind points of meadow. The heron flew away, and one male sheldrake flew past us low over the water, reconnoitering, large and brilliant black and white. When the heron takes to flight, what a change in size and appearance! It is presto change! There go two great undulating wings pinned together, but the body and neck must have been left behind somewhere.