The Townsend's Warbler in Walpole, NH, has attracted birders from around New England. Today there were people from VT, NH, and MA ticking the bird on one of their lists. Occasionally she flitted above the weeds in flycatching mode. Other times she worked her way along the ground searching for insects. Kaufman's Lives ... tells me she eats mostly insects, sometimes seeds, during the winter in the tropics some berries and nectar. There are plenty of berries on the bittersweet twined in the apple trees, but soon there will be much competition with other birds for that source.
But ... predictions for the coming nights call for temperatures in the 20s, and New England winter could descend at any moment. What will she do? ... when the insects are gone and the land is gripped by snow and ice?
Good birding! ... may not always be good for the birds.