Several species of woodpeckers have had ascribed to them the habit of accumulating stores of provisions in anticipation of the approach of winter, but we have no knowledge of this being done by any American species, except that now before us. For it we can claim this degree of instinctive prudence on undoubted evidence, and shall have the pleasure, in the present article, of laying before our readers an account of it, which is not only a remarkable illustration of instinct, but shows a singular method of mechanical preparation and management. Our valued friends, Mr. John G. Bell of New York, and Dr. A. L. Heermann of Philadelphia, both of whom have made extended visits to California for the purpose of investigating its Natural History, found this woodpecker very abundant in all the parts of that country which either of them visited. The former gentleman has had the kindness to inform us, that he considers it by far the most extensively diffused and common woodpecker of that country. He represents it as somewhat disposed to gregariousness in its habits, and has frequently seen individuals on the same tree so numerous and so close together, that several might have been killed at a single discharge. According to Mr. Bell, its note very considerably resembles that of the red-headed woodpecker, which it much resembles also in flight and other general characters. He observed it only on trees, particularly on the pines; and upon examination found the contents of the stomachs of all the specimens which were procured by him, to be composed principally of ants, of which several of the species of California habitually frequent trees. The large collection of birds brought home by Mr. Bell contained numerous specimens of this species. The account given by Dr. Heermann of this bird is of a highly interesting character, and he has identified, for the first time, the species of woodpecker of which previously nothing could be accurately made out from the statements of travellers respecting a bird which possessed the provident and curious instinct of storing away a supply of food for the winter in holes made for that purpose in the bark of trees. His remarks are in his “Notes on the Birds of California observed during a residence of three years in that country,” published in the Journal of the Academy of Natural Sciences of Philadelphia, Vol. II. p. 270. (Quarto 1853,) from which we transcribe the following: “This is the noisiest and most abundant of the woodpeckers of California. Perched on the topmost branch of a tree, it darts suddenly into the air in pursuit of an insect, and having secured its object, soon again returns to the same place, only to repeat this manœuvre in a few moments.