Life at the Edge of the Sea – Swallows of Massachusetts
Lovely large flocks of Tree Swallows continue to gather, gracing our shores with their chattering cheery chirping. But these flocks aren’t only comprised of Tree Swallows, often seen in the mix are Barn Swallows, too.
Barn Swallow left, female Tree Swallow right
Male Tree Swallows
There are six species of Swallows that breed in Massachusetts and they are Tree, Barn, Cliff, Purple Martin, Northern Rough-winged, and Bank Swallows. Tree Swallows are the most abundant breeders, with Barn Swallows coming in second. Cliff, Northern Rough-winged, Bank, and Barn Swallows are all in decline.
Male and female Tree Swallows
Male Tree Swallows wear brilliant iridescent greenish blue feathers, with a sharply defined face mask. The females are a duller brownish, but they too have some blue iridescence in their plumage. Both have white chins and predominantly white breasts.
Barn Swallow
Male Barn Swallows are a beautiful cobalt blue with rusty red forehead and red feathers below their bills. Their bellies vary from buffy tan to cinnamon colored.
Tree Swallows breed in the wetlands and fields of Cape Ann. Their name comes from the species habit of nesting in tree cavities. Tree Swallows have benefited tremendously from efforts to help save the Eastern Bluebird because they also nest in the nest boxes built specifically for the Bluebirds.
Juvenile Barn Swallow
Barn Swallows build their nest cups from mud and they prefer nesting sites such as the rafters, eaves, and crossbeams of barns, stables, and sheds. They also chose the undersides of wharves and bridges.
Acrobatic aerialists, both Tree and Barn Swallows twist and turn mid-flight to capture a wide variety of insects including flies, butterflies, dragonflies, bees, beetles, and wasps. We on Cape Ann especially love swallows because they eat the dreaded Greenhead.
