An Appreciation of Swallows...and of Edward Howe Forbush

Tree Swallow, West Kennebunk, ME

One day late in the summer of 1984 I was mowing a nice crop of rowen in the upper part of the big field that we called the Drake Lot, on the family farm in western Massachusetts. It was a gorgeous, damn-near perfect August day; sunny, with a few white puffy clouds in an otherwise clear blue sky, temperature in the mid-70s, just a bit of a breeze blowing. The air was crisp and dry; I knew that the grass I was cutting would be ready for raking and baling by the next afternoon. It was the kind of day when riding a tractor for a several hours was as pleasant an activity as anything else I might have been doing.

After I'd been around the field three or four times I was delighted to find myself accompanied by a sizable flock of swallows. They were constantly in motion, swooping and diving gracefully as they feasted on the insects that the mower was stirring up. Birds would come in low over the field behind me, flying swiftly over the swath I'd just cut. They'd snatch up a few morsels as the grass fell, go into a vertical climb over the mower, bank sharply to the right or left, then loop back to make another circuit. Others would come in from the sides, or the front, sweeping as many bugs as they could into their open mouths as they flew. With all the activity it was impossible to get anything approaching a precise count but there were at least a couple of dozen birds following me. Their numbers swelled with each successive lap I made around the field.

Their aerial acrobatics were such a joy to watch that it was all I could do to keep my mind on the mowing. The grace, speed, and precision of their flight was enthralling. George Lucas and his cohorts must have had the flight of swallows in mind when they developed some of the maneuvers of the tie fighters and other small spacecraft in the battle scenes of the Star Wars movies.

As the multitude of birds around me grew, I started to pay more attention to just what kinds of swallows they were. The familiar Barn Swallows, with their blue backs, reddish-orange bellies, and long forked tails, were much in evidence. They were equaled or perhaps surpassed in number by Tree Swallows, whose iridescent gunmetal blue-green backs and pristine white undersides flashed brilliantly in the afternoon sun.

I eventually realized, however, that there were a couple of other, much less-familiar species in the mix. Some had brown backs, and white bellies similar to the Tree Swallows but with brown bands across their upper chests. Their tails had a bit of a fork in them, though nowhere near as pronounced as those of the Barn Swallows. Others had coloration somewhat similar to Barn Swallows but were chunkier, and lacked the classic forked "swallowtail." I scratched my head about these two and resigned myself to having to look them up when I got back to the house for dinner.

Upon reaching home I turned to one of the few bird books I owned at the time: A Natural History of American Birds of Eastern and Central North America. This is essentially an abridged version of Edward Howe Forbush's monumental three volume work, Birds of Massachusetts and other New England States (1925-1929). I quickly learned that the brown birds with the chest stripes were Bank Swallows, a species I knew about but had seen only rarely. Cool. Even cooler was learning that the more colorful ones were Cliff Swallows, a species that was entirely new to me. I had not yet begun keeping a life list at this time but it was still a great treat to have spotted, and learned about, a new bird.

The real joy of doing this bit of research, however, came when I turned to Forbush's description of the Barn Swallow: 
No bird in North America is better known or more truly the friend and companion of man than the swift and graceful Barn Swallow. It nests within his buildings, and with a flight that seems the very 'poetry of motion' it follows the cattle afield or swoops about the house dog as he rushes through the tall grass, and gathers up the flying insects disturbed by his clumsy progress. When the mowing machine takes the field, there is a continual rush of flashing wings over the rattling cutter-bar just where the grass is trembling to its fall. The Barn Swallow delights to follow everybody and everything that stirs up flying insects--even the rush and roar of the modern juggernaut, the motor-car, has no terrors for it.

Wow. It was as if he'd not only been riding along with me on the tractor as I mowed, but had crawled inside my head and described what I'd been seeing. It was more than a little spooky to read something that I felt as if I could have written myself...though Forbush said it better than I could have.

Although I'd been familiar with Forbush's work for some time, up until that afternoon I had not fully appreciated what a fine descriptive writer he was. This was far from the last time that I would turn to him for information about some bird or bit of behavior that had aroused my curiosity, and have him describe exactly what it was that I had just seen. In an earlier post I wrote about watching a pair of Pileated Woodpeckers working away on a pine tree near my house. Forbush, writing roughly ninety years earlier, summed up what I saw quite well:
Pileated Woodpeckers are such powerful birds that they can split off large slabs from decaying stumps, strip bushels of bark from dead trees, and chisel out large holes in either sound, dead, or decaying wood. They like to strip the bark from dead pines, spruces, and especially hemlocks. Their size and strength and their long spear-like tongues enable them to penetrate large trees and draw out borers from the very heart of the tree.

Where I live now, on the banks of the Mousam River in southern Maine, I often enjoy the sight of Wood Ducks cruising past on the open stream, or paddling around the boggy backwaters. Again, Forbush's description of watching these striking ducks matches exactly what I have observed myself. He writes with such grace, beauty, and affection that reading his words brings another whole level of enjoyment and appreciation to the experience: 

Male Wood Duck, Murfreesboro, TN

See that mating pair on the dark and shaded flood of a little woodland river; they seem to float as lightly as the drifting leaves. The male glides along proudly, his head ruffled and his crest distended, his scapular feathers raised and lowered at will, while his plumes flash with metallic luster wherever the sun's rays sifting through the foliage intercept his course. She coyly retires; he daintily follows, exhibiting all his graces, the darkling colors of his plumage relieved by the pure white markings of head and breast and the bright reds of feet and bill and large lustrous eye.

Forbush wrote with knowledge and affection in equal measure. I will repeat the quote from Joseph Kastner about Forbush that I included in a previous post: "Going through his volumes is like going along on a long bird walk, getting to know birds through the eyes and ears and feelings of scores of birders--all their perceptions filtered through the mind of one of the finest and most literate ornithologists the country has ever known." Would that I could tag along with him on such a walk.

Forbush, who lived from 1858 to 1929, was writing in and of a New England that has now largely vanished, the New England of family farms, open country, and minimal suburban sprawl. It was a quieter world, a world in which "the rush and roar of the modern juggernaut, the motor-car" had only begun to make incursions. Although my bird-loving, farming father was of a generation after Forbush, he still lived much of his life in this same world.

I came along only at the tail end of this era but it has, in many ways defined me as well, particularly in my relationship with, and love for, birds. I am grateful that I had the opportunity to grow up doing things like mowing hay in the summer while swallows swarmed around me, and fixing fence in the spring when the woods and pastures were filled with the sights and sounds of warblers and other returning migrants, and hauling wood in the fall with flocks of southbound Canada Geese honking overhead. I am grateful also to have had a father who had an interest in, and was knowledgeable about, birds. As I have written previously, my father's copy of volume 3 of Forbush's Birds of Massachusetts was one of the books that set me on the path of my own efforts to learn about birds. These factors combine to give me an attachment to Forbush and his work that I simply do not get from any modern field guide or smartphone birding app.

I intend to write more about Forbush in the future, and examine some of his books, but for now I'll wrap up this post by returning to swallows. Tree Swallows this time. Forbush wrote of them:
In August, thousands of Tree Swallows, with other species, arrive at the seashore, where they roost in the marshes. They scatter about in the daytime, feeding on insects and berries. Their numbers continue to grow by accessions from the interior, until many thousands are gathered along the coast. Sometimes they alight on telegraph wires, covering them for miles, or they may light on the beaches until the sand is black with their hosts.

I experienced this phenomenon first-hand while visiting Plum Island, near Newburyport, Massachusetts, in September of 2012. Tree Swallows filled the air around me--many hundreds more than had accompanied me while I was mowing back in 1984! It was hard to believe that these were birds; it felt more as if I was caught in a swarm of very large insects.

I had my camera with me that day and captured a bit of the experience:

The human world may, indeed, have undergone vast changes between the time Forbush wrote about the late summer gathering of Tree Swallows and the day I found myself in the midst of a virtual cloud of them, but this seasonal behavior of the birds continues. The timelessness of this annual mustering of swallows makes Forbush's description of it equally timeless; his words are just as apt today as they were when he wrote them decades ago. I take comfort in this.