I could be wrong, but I suspect that Lomax referred to(or should have) Drummond's poetry as "habitant", rather than "habitat". "Habitat" is where "habitants" (in english, inhabitants) live. For instance, the Montreal Forum used to be the habitat of "Les Habitants" or, in english, "The Habs" (more recently, "The Hab-nots").
Alan Lomax: Apart from the sea chanteys, which were sung on the Lakes in the days of sail, shipwreck songs form the largest section of the folklore of the Great Windy Lakes. This ballad comes from the pen of W.H. Drummond (1865-1907), famous for his poetry in habitat, or French-Canadian English