Audubon in Louisiana
Common Gallinule

Common Gallinule [now Common Moorhen]
Gallinula chloropus, Linnaeus [now Gallinula galeata]
Octavo edition, plate 304
“The two species of Gallinule which occur in the United States are confined within a comparatively small range in that extensive country, the southern portions of which appear to suit them better, at all seasons of the year, than the other districts. The Common Gallinule is extremely abundant during winter along the rivers, fresh-water creeks, lagoons, ponds and lakes, between the Gulf of Mexico and the eastern shores of the Floridas, while in spring and summer a good number migrate eastward into the Carolinas, and now and then a few stragglers may be seen on the fresh waters of the Middle Districts, beyond which none, to my knowledge, have ever been observed. They seldom ascend any of our southern streams to any considerable distance, few are ever met with many miles above Natchez on the Mississippi, and none are to be seen in the Western Country. In general they are equally diurnal and nocturnal in their habits, and when undisturbed frequent the land as much as the water. In the lower parts of Louisiana and the Floridas, I have seen them seek their food and amuse themselves by day in the pastures and fields, and I have observed both them and the Gallinules of England enacting their courtship, while the sun was yet high above the horizon.”
John James Audubon, Birds of America (New York: J.J. Audubon; Philadelphia: J. B. Chevalier, 1840-1844), vol. 5, p. 132.
View bird in National Audubon Society Guide to North American Birds.