Cassell's book of birds; vol. 3

by Alfred Edmund Brehm

THE STOCK DOVE.

The STOCK DOVE (Columba œnas) is of a deep blue upon the head, throat, upper wings, lower part of back, and rump; the upper portion of the back is deep greyish blue, the region of the crop rich deep red; the rest of the under side pale blue. The quills and ends of the tail-feathers are slate-blue, the wing is decorated with a dark band, and the neck enlivened by the metallic lustre common to the race of Pigeons. The eye is deep brown, the beak pale yellow, with dark flesh-pink base, powdered with white, and the foot pale red. The young resemble the parent birds, but are duller in their colours. The length of this species is from twelve inches to twelve and a half, and its breadth from twenty-five to twenty-six inches; the wing measures eight inches and a half and the tail five inches.

Many authors have regarded this as the same species as the Rock Dove, or as having but trifling differences. Yarrell, however, considers them to be perfectly distinct, both as to habits, voice, plumage, and the localities which they frequent. "The Stock Dove," says this accurate author, "was called œnas[A] on account of the vinous claret-colour of the plumage of the neck; and Stock Dove, not because it was by some considered to be the origin of our domestic stock, but because it builds in the stocks of trees, particularly such as have been headed down, and have become in consequence rugged and bushy at the top." In more open parts of the country, holes in the ground are selected as breeding-places, especially the burrows of rabbits. When the warreners find the young in a burrow, they fix sticks at the mouth of the hole in such a manner as to prevent the escape of the young, but so as to allow the old birds to feed them. Bishop Stanley refers to this bird's habit of building in holes as illustrative of a passage in Scripture. He says; "In the Eastern countries and the Holy Land, the Wild Pigeons almost invariably prefer such situations to trees, thus confirming the words of the prophet, who speaks of the 'dove that maketh her nest in the sides of the hole's mouth' (Jer. xlviii. 28)."

When the eggs are laid in this manner in deserted burrows, they are either placed on the bare sand or upon a few dried roots, about a yard within the entrance. The Stock Dove also nestles under furze bushes, or in the holes of decayed trees. The eggs are two in number, oval and white, and are laid about the end of March or beginning of April. The food of the Stock Dove is similar to that of the last-mentioned species.

The Columba œnas has not been found in Scotland. On the continent of Europe it is abundant, visiting the central and northern parts during the summer, and it has been seen in Northern Africa. It is also said to be met with in the Deccan. The harsh and somewhat grunting note of this species is usually uttered while the bird is perching, and is accompanied by considerable inflation of the throat. When in flight its movements are very rapid and noisy, the wings producing a rushing sound, which gradually becomes shriller and clearer, but altogether subsides when the gently hovering motion commences that precedes alighting. So strong is the love of the Stock Dove for its favourite retreat, that even if repeatedly alarmed it returns immediately to its place. The period of incubation commences early in spring, and, if not disturbed, the female produces three broods in the season, the first eggs being deposited by the beginning of April. During the whole time his mate is thus busily engaged, the male bird testifies the greatest devotion, keeping close to her, and constantly uttering his cooing note. Many are the quarrels that ensue between the various couples at this period, for, as each requires an unused hole in some tree wherein to deposit a brood, the demand is usually greater than the supply, and as these localities are also much resorted to by such formidable antagonists as Starlings, Woodpeckers, and Jackdaws, the domestic career of a pair of Stock Doves is by no means one of uninterrupted peace and harmony. This constant change of domicile is rendered necessary by the rapid accumulation of the castings from the young, with which the inmates become so soiled that some time elapses after they have left the nest before the feathers are thoroughly purified; fortunately for the building birds, by the following season, insects of various kinds and the busy Woodpecker have cleared away the refuse from the holes, and made them fit for occupation. We are told that the affection of this species for its brood is so strong that it is almost impossible to force the parent birds away, and that a female Stock Dove will remain to be shot rather than desert her eggs.

THE ROCK DOVE.

The ROCK DOVE (Columba livia)—see Coloured Plate [XXVII].—is of a pale greyish hue on the mantle and bright blue on the under side; the head is light slate-blue, the throat deep slate-colour, glistening above with bright blueish green, and on its lower portion with a purple gloss; the rump is white. Two black lines pass across the deep grey wings; the tail-feathers are dark bright blue, tipped with black; those at the exterior are white on the outer web. The eye is sulphur-yellow, the beak black, with a light blue base, and the foot deep blueish red. The sexes are alike, and the young somewhat deeper in their colours than the adult birds. This species is thirteen inches long and twenty-three broad; the wing measures eight inches and one-sixth and the tail four inches and one-third.

The Rock Dove in its natural state inhabits rocky sea-coasts, flying only sufficiently inland to procure food. It is spread over a very wide range of country, being met with as far north as the Faroe Islands, and as far southward as Africa. In Great Britain it is found both on the southern coasts of England and in the east and west of Scotland. In the Orkneys it breeds in the crevices of the rocks, the nests being at such a depth that they are quite out of reach. During the day the Doves associate in flocks and search for food, which consists principally of grain and seeds.

The Rock Dove breeds twice in the season, each brood consisting of two young, generally a male and a female. The eggs are white and of a short oval shape, rather pointed at one end. From this species our Dove-cote Pigeons are derived, and they, like their original progenitors, seldom roost or settle on trees.