Having now finished the prefatory portion of our story, the reader will be better able to understand what may follow.
There is something wonderful, a conception, indeed, which smacks little short of the sublime in contemplating the protracted journeyings of the larger aquatic birds of passage. Especially is this true of the American wild goose, the brant and the swan. The brant is the wild goose of Great Britain and continental Europe; a much smaller bird than his American relative; and its migrations are of comparatively short range.
The European domesticated swan, remains, of course, the year round in the country of his adoption.
Not so, however, with the American goose and swan. Both the former, Anseres hyperboreas, and the latter, Cygnus buccinator, rear their young in the Arctic regions and spend the succeeding winter with their offspring in the Gulf States and Central America.
Think of these magnificent birds, those on the Pacific coast flying from the shores of the Arctic ocean in northern Alaska and British America, crossing the Rocky Mountains, and, after a journey of four or five thousand miles, complacently settling down in Texas, Mexico, Yucutan, or Nicaragua, as the experienced leaders may determine. Then turn to those on the Atlantic side of the continent and watch them as they leave the Baffin’s Bay country, cross the great lakes and the Appalachian mountain system to make a short winter sojourn among the everglades of southern Florida.
In the tactics of these great birds while performing their immense journeys there is something remarkable even to the casual observer. More than two thousand years ago it was recorded by a student of natural history that, “Olores iter facientes colla imponunt praecedentibus; fessos duces ad terga recipiunt.”
“Swans performing a journey rest their necks upon those preceding; and the leaders receive the weary ones upon their backs.”
And this significant remark has often been confirmed by modern observation.
Owing to the fact that they are more sparsely distributed, that they fly much higher and in smaller numbers than wild geese, the swans are comparatively seldom seen during their migratory flights save in the fastnesses of mountainous districts or at the extreme points of arrival and departure. Hence we see why so little is known concerning the details of their aerial movements.
On the contrary, the semi-annual passage of wild geese is not only a folk-lore phenomenon, but a familiar spectacle to the residents of cities and towns as well as those who spend their days in the rural districts. Now, there is more military precision in the alignment of a large flock of wild geese than the most careful observer ever dreamed of or science investigated.