Their flight is similar to that of the Carolina Dove in the firm movements of the wings, though they do not produce the same whistling sounds. In flying over the water they keep near its surface; and when started from the ground they only fly to a short distance, and realight in the grass or a thicket. They are extremely gentle, so much so that Mr. Audubon has occasionally approached so near as to almost touch them with his gun as they stood gazing at him, apparently devoid of all fear.
They breed in the few keys that are covered with grass and low shrubs. They always place their nest on the ground, often with so little concealment that it may be easily discovered by any one searching for it. Occasionally it is placed between tufts of grass, the tops of which bend over and conceal it. A small hole is scooped in the sand in which a slight nest, composed of matted blades of dry grasses, is placed, circular in form, and embedded in an outer collection of dry leaves and twigs. The whole fabric is said to be more compact than the nest of any other Pigeon. The eggs, always two, are described as pure white and translucent.
When sitting on her eggs or on her young, the female rarely moved from them except when an attempt was made to catch her, which she always evaded with great dexterity, gliding with great quickness to a short distance, and watching the movements of the intruder with drooping wings and an air of deep sorrow, her whole frame trembling as if with intense cold.
Mr. Audubon took alive two of the young birds, which he fed from his mouth with Indian-corn meal. This they ate with avidity, until placed under the care of a common tame Pigeon, that at once fostered them. They lived, and were taken to Dr. Bachman in Charleston.
Their notes are said to closely resemble the cooing of the Carolina Dove, but are somewhat more soft and tender. During midday, when the heat in the central parts of the keys is intense, these birds are silent.
Their flesh was found to be excellent, and they were generally very fat. They fed on grass seeds, on the leaves of certain aromatic plants, and on various kinds of berries,—among others, one highly poisonous to man,—and mingle with their food particles of shells and gravel. They have two broods in a season.
According to Mr. Audubon, their eggs measure 1.25 inches in length by .87 of an inch in breadth, and are abruptly pointed at one end. He states that they propagated readily in the aviary of the Earl of Derby, some being let loose in the hope of introducing them into England.
This species, known in Jamaica as the Pea Dove, is not, according to March, gregarious, and, although terrestrial in habits, is often seen and heard on trees, and also roosts there. It nests indiscriminately on the ground or in trees, making a slight platform of sticks and twigs, loosely put together. The eggs are two, oval or roundish-oval in shape, and white. They measure from 1.20 to 1.32 inches in length by an inch in breadth. It is a favorite cage-bird, and though apparently very timid and restless, becomes very tame and docile, and will take grain from the hand or lips of its feeder.
In Santa Cruz it is known as the Mountain Dove, and was there found very common by Mr. Newton. It afforded excellent sport and was very good eating. It was not only numerous on the hills, but was likewise plentiful in all parts of the island sufficiently overgrown with brush. Mr. Newton did not find it so terrestrial in its habits as it is stated to be by some writers. Its flight is said to be remarkably rapid. It breeds from April to the end of July, and is said to build the ordinary Pigeon’s nest,—a mere platform of twigs in a bush or tree at any height from a few feet to twenty. It lays two eggs, which, in Santa Cruz, were found by Mr. Newton to be perfectly white, and not of a drab hue, as stated by Mr. Gosse. The young birds are often taken from the nest and brought up without much difficulty. The cooing of this Dove is stated to much resemble the noise made by sounding a conch-shell.
The eggs of the Zenaida Dove are more rounded in their shape than those of most of our Pigeons, are white, equally obtuse at each end, and measure 1.30 inches in length by .90 in breadth.