A History of North American Birds, Land Birds. Volume 3. Robert Ridgway

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      A specimen (15,917, ♂, Dr. C. B. Kennerly, Camp Skagitt, September 29, 1859) from Washington Territory is exactly similar to the young described above. No. 10,702 (Fort Burgwyn, New Mexico; Dr. Anderson) is much like it, but the facial circle is quite conspicuous, the feathers having medial white lines; the reddish-olive of the breast and the fulvous of the belly are paler, also, than in the type. No. 12,866, United States, (Professor Baird’s collection, from Audubon,) is perfectly similar to the last.

      My reasons for considering the N. albifrons as the young of N. acadica are the following (see American Naturalist, May, 1872):—

      1st. All specimens examined (including Hoy’s type of N. kirtlandi) are young birds, as is unmistakably apparent from the texture of their plumage.

      2d. All specimens examined of the N. acadica are adults. I have seen no description of the young.

      3d. The geographical distribution, the size and proportions, the pattern of coloration (except that of the head and body, which in all Owls is more or less different in the young and adult stages), and the shades of colors on the general upper plumage, are the same in both. The white “scalloping” on the outer web of the alula, the number of white spots on the primaries, and the precise number and position of the white bars on the tail, are features common to the two.

      4th. The most extreme example of albifrons has the facial circle uniform brown, like the neck, has no spots on the forehead, and the face is entirely uniform dark brown; but,

      5th. Three out of the four specimens in the collection have the facial circle composed of white and brown streaks (adult feathers), precisely as in acadica, and the forehead similarly streaked (with adult feathers). Two of them have new feathers appearing upon the sides of the breast (beneath the brown patch), as well as upon the face; these new feathers are, in the most minute respects, like the common (adult) dress of N. acadica.

      The above facts point conclusively to the identity of the Nyctale “albifrons” and N. acadica. This species is easily distinguishable from the N. tengmalmi, which belongs to both continents, though the North American and European specimens are readily separable, and therefore should be recognized as geographical races.

      Since the above was published in the American Naturalist for May, 1872, Dr. J. W. Velie, of Chicago, writing under date of November 20, 1872, furnishes the following proof of the identity of N. “albifrons” and N. acadica: “In 1868, I kept a fine specimen of “Nyctale albifrons” until it moulted and became a fine specimen of Nyctale acadica. I had, until the fire, all the notes about this interesting little species, and photographs in the different stages of moulting.”

      Habits. The Little Acadian or Saw-Whet Owl, as this bird is more generally denominated, appears to have a widespread distribution over temperate North America. It is not known to be anywhere very abundant, though its nocturnal and secluded habits tend to prevent any intimate acquaintance either with its habits or its numbers in any particular locality. It is rarely found in the daytime out of its hiding-places. It was not met with by Richardson in the fur regions, yet it is generally supposed to be a somewhat northern species, occurring only in winter south of Pennsylvania, but for this impression there does not seem to be any assignable reason or any confirmatory evidence. It has been said to breed near Cleveland, Ohio, and its nest and eggs to have been secured. The taking of Kirtland’s Owl, which is now known to be the immature bird of this species, near that city, as well as in Racine, and at Hamilton, Canada, is also suggestive that this Owl may breed in those localities.

      Dr. Townsend is said to have found this Owl in Oregon, Dr. Gambel met with it in California, Mr. Audubon has taken it both in Kentucky and in Louisiana, Mr. Wilson met with it in New Jersey, Mr. McCulloch in Nova Scotia, and Dr. Hoy in Wisconsin. Dr. Newberry met with this bird in Oregon, but saw none in California. Dr. Suckley obtained it at the Dalles, on the north side of the Columbia, in December. This was several miles from the timbered region, and the bird was supposed to be living in the basaltic cliffs of the vicinity. Dr. Cooper found one at Vancouver in February. It was dead, and had apparently died of starvation. Professor Snow speaks of it as rare in Kansas. Mr. Boardman and Professor Verrill both give it as resident and as common in Maine. It is rather occasional and rare in Eastern Massachusetts, and Mr. Allen did not find it common near Springfield. On one occasion I found one of these birds in April, at Nahant. It was apparently migrating, and had sought shelter in the rocky cliffs of that peninsula. It was greatly bewildered by the light, and was several times almost on the point of being captured by hand.

      This Owl is not unfrequently kept in confinement. It seems easily reconciled to captivity, becomes quite tame, suffers itself to be handled by strangers without resenting the familiarity, but is greatly excited at the sight of mice or rats. Captain Bland had one of these birds in captivity at Halifax, which he put into the same room with a rat. The bird immediately attacked and killed the rat, but died soon after of exhaustion.

      The notes of this Owl, during the breeding-season, are said to resemble the noise made by the filing of a saw, and it is known in certain localities as the Saw-Whet. Mr. Audubon, on one occasion, hearing these notes in a forest, and unaware of their source, imagined he was in the vicinity of a saw-mill.

      According to Mr. Audubon, this Owl breeds in hollow trees, or in the deserted nests of other birds; and lays from four to six glossy-white eggs, which are almost spherical. He states, also, that he found near Natchez a nest in the broken stump of a small decayed tree not more than four feet high. He also mentions the occasional occurrence of one of these Owls in the midst of one of our crowded cities. One of them was thus taken in Cincinnati, where it was found resting on the edge of a child’s cradle. Mr. McCulloch, quoted by Audubon, gives an interesting account of the notes and the ventriloquial powers of this bird. On one occasion he heard what seemed to him to be the faint notes of a distant bell. Upon approaching the place from which these sounds proceeded, they appeared at one time to be in front of him, then behind him, now on his right hand, now on his left, again at a great distance, and then close behind him. At last he discovered the bird at the entrance of a small hole in a birch-tree, where it was calling to its mate. As he stood at the foot of the tree, in full sight of the bird, he observed the singular power it possessed of altering its voice, making it seem near or remote,—a faculty which he had never noticed in any other bird.

      An egg given me by Mr. Rufus E. Winslow as one of this bird, and figured in the North American Oölogy, was undoubtedly that of a Woodpecker. It is of a crystalline whiteness, nearly spherical, and measures 1.13 inches in length by .87 of an inch in breadth.

      A well-identified egg in the collection of the Smithsonian Institution, taken by Mr. R. Christ at Nazareth, Penn., (No. 14,538, S. I.,) measures .95 of an inch by .88. The two ends are exactly similar or symmetrical. The egg is white, and is marked as having been collected April 25, 1867.

      Genus SCOPS, Savigny

      Scops, Savigny, 1809. (Type, Strix scops, L. = Scops zorca (Gm.) Swains.)

      Ephialitis, Keys. & Bl. 1840, nec Schrank, 1802.

      Megascops, Kaup, 1848. (Type, Strix asio, L.)

      Gen. Char. Size small, the head provided with ear-tufts. Bill light-colored; iris yellow. Three to four outer quills with inner webs sinuated. Wings long (more than twice the length of the tail, which is short and slightly rounded); second to fifth quills longest. Toes naked, or only scantily feathered. Ear-conch small and simple. Plumage exceedingly variegated, the colors СКАЧАТЬ