Grouse "Budding" in an Apple Tree
Fifty-five species of Warblers inhabit North America. These birds are insectivorous in their feeding habits, which of course also means that they are migratory. A partial exception to the rule is found in the common Myrtle Warbler. Although in winter these birds range south to Panama, many remain as far north as New Jersey, Kansas, and the Ohio Valley. This does not mean that insects are found in these regions in sufficient numbers to supply the larder of the Myrtle Warblers, but it does mean that they find acceptable substitutes for their usual food. Oddly enough, what they depend on is not animal matter in any form, but consists of berries which contain some of the essential food properties of fatty meats. One of the most popular with them is the common bayberry.
Among the sand dunes of the extensive "Banks" along the North Carolina coast there grows in great profusion a small bushy tree known as the yaupon. The young leaves of this when dried and steeped make a very acceptable drink, and during the hungry days of the Civil War when the Federal blockade became effective the people of the region used this as a substitute for tea and coffee. The yaupon produces in great abundance a berry that is so highly esteemed by the Myrtle Warblers that they pass the winter in these regions in numbers almost incredible.
When the Food Supply Fails.—It is hard to realize the extent of the havoc wrought among birds by cold, snowy weather. Early in the year 1895 a long, severe cold spell, accompanied by snow and sleet, almost exterminated the Bluebird in the eastern United States. The bodies of no less than twenty-four of these birds were found in the cavity of one tree. It looked as if they had crowded together with the hope of keeping warm. It was not the cold alone which had destroyed the birds: a famine had preceded the cold snap, and the birds, weakened by hunger, were ill prepared to withstand its rigours.
One winter some years ago a prolonged freezing wave swept over our South Atlantic States, and played havoc with the Woodcock in South Carolina. This is what happened: the swamps in the upper reaches of the Pee Dee, the Black, and Waccamaw rivers were frozen solid, and the Woodcock, that in winter abound in this region, were thus driven to the softer grounds farther downstream. The cold continued and the frozen area followed the birds. The Woodcock, unable to drive their long bills into the once-responsive mud, were forced to continue their flight toward the coast in search of open ground where worms could be found. When at length they reached Winyaw Bay, where these rivers converge, they were at the point of exhaustion. Thousands of the emaciated birds swarmed in the streets and gardens of Georgetown. They were too weak to fly, and negroes killed them with sticks and offered baskets of these wasted bodies, now worthless as food, for a few cents a dozen. Several shipments were made to Northern cities by local market men, who hoped to realize something by their industry.
Of the Wild Ducks which remain North in the winter many die because of the freezing of the water in which they must dive or dabble for their food. On the morning of February 11, 1912, Cayuga Lake in western New York State was found to be covered with a solid sheet of ice from end to end. It is a large body of water, having an area of nearly sixty-seven square miles. It rarely freezes over—only once in about twenty years, as the records show. The Ducks inhabiting the lake at this time were caught unawares. Many of them moved quickly to more Southern waters, but others tarried, evidently hoping for better times. Subsequently a few air-holes opened and the Ducks gathered about them, but there was little food even here, and numbers starved to death. One observer who went out to the air-holes reported examining the bodies of twenty-eight Canvas-backs and nineteen Scaups in addition to many others such as Redheads and Golden-eyes. His survey was not exhaustive and the Gulls had doubtless removed many bodies from the territory he visited. When the surface of lakes and bays freezes suddenly in the night Ducks are sometimes caught and held fast by the ice adhering to their feathers and legs. In this condition they are utterly unable to escape the attacks of man and beast, and in the latitude of New York captures in this way are now and then reported.
Wild Fowl Destroyed in the Oil Fields.—In the oil fields of the Southwest and old Mexico the surface of many ponds is covered with oil into which unsuspecting flocks of Ducks alight never again to emerge until their dead bodies drift to the shore. It was on November 27, 1912, that the naval tank ship Arethusa steamed into the harbour of Providence, Rhode Island, with a cargo of crude oil. For several days following her bilge pumps sent overboard a continuous stream of water and oil seepage. On December 3d the following news-item appeared in the Providence Daily Bulletin, "The east shore of the lower harbour and upper bay, from Wilkesbarre pier to Riverside and below, is strewn with the bodies of dead Wild Ducks, which began to drift ashore yesterday. The wildfowl came into the bay in enormous flocks about the middle of November and have since been seen flying about or feeding in the shallow water, as is usual at this time of year. As no such amount of oil, it is believed, was ever let loose into the bay at one time before, and as Ducks along the shore, dead from poisoning, have never been seen before, it is reasonable to connect the two occurrences."