The Tree Swallow remains in Maine, along the coast, near freshwater ponds, and in agricultural fields, during the summer. Thereafter, as with many other birds, it migrates to to southern coastal states, Mexico and Central America.
This one apparently decided to take up residence in one of the bird boxes provided in an open field at the Viles Arboretum in Augusta. Its shiny blue-green coat turns more green in the fall.
Tree Swallow at the Viles Arboretum in Augusta (2002)
We have had tree swallows nesting in birdhouses on our property in Brunswick Maine every year for 10 years. This year we have not seen any tree swallows. Has anyone else in this region noticed a decline in tree swallows this year?