While birding Humber Bay West with Bruce
Falls, Mc and Susan, we heard scolding and a fuss going on inside a
stand of sumac. We could see two similar looking grey birds behaving
in an agitated way. Suddenly, a Northern Shrike flew out, then the
Northern Mockingbird started eating the sumac. This is obviously
part of the mockingbird's wintering territory and the shrike was an
invader. Obvious was the striking similarity in plumage colour,
shape, tail, white patch on the wing and white outer tail feathers.
18 January 2017.