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

Чтение книги онлайн.

      Mr. Downes states that the Hawk Owl is very abundant in Nova Scotia in the winter time in some years, but may not be seen again for four or five seasons. It is common in Newfoundland, where it breeds in the Caribou districts. Mr. Downes often kept living specimens in confinement, which had been taken on board the Cunard steamers off the coast.

      Mr. Boardman gives this species as resident, though rare, in the neighborhood of Calais, being occasionally found there in the breeding-season. In Oxford County, Maine, Professor A. E. Verrill says it is a common autumnal and winter visitant, and that it is quite abundant from the first of November to the middle of March, but not found there in the summer. Mr. Allen has never met with it in Western Massachusetts. Near Boston, in some seasons, it is not uncommon, though never occurring with any frequency, and only singly. It is found throughout the State, and is probably more common late in November than at any other time; several having been taken in Westfield, and also in Berkshire County, among the Green Mountains. I am not aware that any have been taken farther south than Philadelphia, near which city Mr. Edward Harris obtained one specimen, while another was shot at Haddington in 1866. Mr. McIlwraith calls it a rare winter visitant near Hamilton, Canada.

      Richardson states that it is a common species throughout the fur countries from Hudson Bay to the Pacific, where it is killed by the hunters more frequently than any other, which may be attributed to its boldness and to its diurnal habits. During the summer season it feeds principally upon mice and insects, but in the regions in which it is found in winter, where the snow is very deep, and where this food is not procurable, it must depend on the Ptarmigan, and, indeed, is found a constant attendant upon the flocks of these birds in their spring migrations. When the hunters are shooting Grouse, it is said to be occasionally attracted by the report of the gun, and is often bold enough, when a bird has been killed, to pounce down upon it, although it is unable, from its inferior size, to carry it off. It is also said to occasionally hover round the fires made by the Indians at night.

      To this account of its habits Richardson adds that it builds its nest on a tree, of sticks, grass, and feathers, and lays two white eggs. In regard to the number of eggs, he is now known to be inaccurate. Mr. MacFarlane met with this bird in considerable numbers in the region of Anderson River, where he found several nests, and all of which he made any record were built in pine-trees at considerable height from the ground. One nest is said to have been on the top of a pine about twenty feet in height, and was composed of small sticks and twigs, lined with moss. Both parents were obtained. This nest contained two young birds—one of which was about ten days old, the other about three weeks—and an addled egg. This nest was found on the 20th of June, showing that the bird began to incubate early in May.

      Another nest, taken on the 28th of April, was found to contain six eggs. It was built in the top crotch of a tall pine, was composed of dry sticks, and lined with hay and a few feathers. A third nest also contained six eggs, and was lined with green mosses and deer’s hair. One nest contained as many as seven eggs, and all but one had as many as six. Mr. MacFarlane speaks of it as a winter resident.

      Mr. B. R. Ross states that he found this bird throughout the Great Slave Lake district, but not plentiful. It winters in even the northernmost parts of the wooded country. It is said to build its nest not only on trees, but also on cliffs, and to lay as early as the last of March or the first of April. He states that the eggs are usually four in number, and describes them as of a dead white, of an oblong-oval shape, and as measuring 1.39 inches by 1.21. He received three eggs with the parent bird, taken at Lapierre’s House, and another parent, with nest and four eggs, from Salt River.

      Mr. Dall found this the most common species of Owl about Nulato. Many of both sexes were obtained, and on the 16th of April he took from the ovary of a female an egg ready for laying. On the 5th of May Mr. Dall obtained six eggs which were laid on the top of an old birch stump, and fifteen feet from the ground. There was no nest other than that the rotten wood was somewhat hollowed out, and the eggs laid directly upon it. As he was climbing to the nest, the male bird which had been sitting on the nest attacked Mr. Dall, and knocked off his cap. The female did not appear.

      Mr. Donald Gunn states that these Owls hunt in the daytime, and feed chiefly upon mice; and Mr. Dall seldom found anything but mice in their crops, and adds that it is very fond of flying, towards dusk, from the top of one tall spruce to another, apparently swinging or balancing itself, calling to its mate at intervals, while chasing or being chased by it.

      Captain Drummond states, in “Contributions to Ornithology” (p. 37), that he noticed a bird of this species, on the wing, within a few yards of him, in the Bermudas.

      Mr. Dresser, who had ample opportunities of observing the Hawk Owl in New Brunswick, where he found it by no means uncommon, describes it as a true day Owl. It was often seen by him hawking after prey in the strongest sunshine, or seated quietly blinking on the top of an old blasted tree, apparently undisturbed by the glare of the sun. In its general appearance, and particularly in its flight, it appeared to him to have considerable affinity to the Sparrow Hawk. In New Brunswick it affected the open plains or so-called blueberry barrens, where the open country is covered with low bushes and an occasional scathed tree. It would sit on one of these trees for hours in an upright hawk-like position, occasionally hunting over the ground, like the Kestrel of Europe, in search of small field-mice. It showed but little fear, and could be easily approached within gun-shot. When shot at and missed, it would take a short flight and return to its former perch. On one occasion Mr. Dresser, firing at one with a rifle, cut the branch close under the bird, which returned almost immediately to another branch, was a second time missed, and finally fell under a third shot.

      Its note is said to be a shrill cry, similar to the call of the European Kestrel, and generally uttered on the wing. The stomach was generally found filled with small field-mice, and rarely contained any remains of small birds. They appeared to hunt after food chiefly early in the forenoon and in the evening. During the day they rested on some elevated perch. In the night they retired to rest like other diurnal Raptores.

      An egg of this Owl, taken from the oviduct of its parent by Mr. B. R. Ross, April 16, at Fort Simpson, measures 1.50 inches in length by 1.20 in breadth. It is of oval shape, and of a dull-white color. Another egg measures 1.62 by 1.30 inches, is of a rounded oval, equally obtuse at either end, and of a yellowish-white color. It was taken by Mr. MacFarlane at Fort Anderson.

      Genus GLAUCIDIUM, Boie

      Glaucidium, Boie, Isis, 1826, 970. Microptynx, Kaup. (Type, Strix passerina, Linn.)

      Microglaux, Kaup. (Type, Strix havanense, Kaup, = G. siju (D’Orb.) Cab.)

      ? Taenioptynx, Kaup. (Type, Noctua brodiei, Burt.)

      Gen. Char. Size very small; head rather small; bill and feet very strong and robust; no ear-tufts; tail long, about three fourths as long as the wing, rounded. Nostrils circular, opening in the middle of the inflated cere-membrane (except in G. siju). Tarsus about equal to the middle toe, densely feathered; toes haired. Four outer quills with their inner webs emarginated; third to fourth longest. Ear-conch very small, simple, rounded. Bill yellowish (except in G. phalænoides?); iris yellow.

      The genus is most largely developed within the tropical regions, only one species (G. passerinum) belonging to the cold temperate zone, and this is found on both continents. They are the most robustly organized of all Owls, and, for their size, are very predatory, as in the next genus (Micrathene), though themselves hardly larger than a Sparrow, they frequently feed upon small birds, and, no doubt, often destroy the passerine species of nearly their own size. Like the most of the group to which this genus belongs, they are diurnal in their habits, and fly about during the СКАЧАТЬ