About the only enemies of the sitting bird or the nest is in danger of are snakes and squirrels. I knew of a farm-boy who was in the habit of putting his hand down into a bluebird's nest and taking out the old bird whenever he came that way. One day he put his hand in, and, feeling something peculiar, withdrew it hastily, when it was instantly followed by the head of an enormous black snake. The boy took to his heels and the snake gave chase, pressing him close till a plowman near by came to the rescue with his ox-whip.
There never was a happier or more devoted husband than the male bluebird is. But among nearly all our familiar birds the serious cares of life seem to devolve almost entirely upon the female. The male is hilarious and demonstrative, the female serious and anxious about her charge. The male is the attendant of the female, following her wherever she goes. He never leads, never directs, but only seconds and applauds. If his life is all poetry and romance, hers is all business and prose. She has no pleasure but her duty, and no duty but to look after her nest and brood. She shows no affection for the male, no pleasure in his society; she only tolerates him as a necessary evil, and, if he is killed, goes in quest of another in the most business-like manner, as you would go for the plumber or the glazier. In most cases the male is the ornamental partner in the firm, and contributes little of the working capital. There seems to be more equality of the sexes among the woodpeckers, wrens, and swallows; while the contrast is greatest, perhaps, in the bobolink family, where the courting is done in the Arab fashion, the female fleeing with all her speed and the male pursuing with equal precipitation; and were it not for the broods of young birds that appear, it would be hard to believe that the intercourse ever ripened into anything more intimate.
With the bluebirds the male is useful as well as ornamental. He is the gay champion and escort of the female at all times, and while she is sitting he feeds her regularly. It is very pretty to watch them building their nest. The male is very active in hunting out a place and exploring the boxes and cavities, but seems to have no choice in the matter and is anxious only to please and to encourage his mate, who has the practical turn and knows what will do and what will not. After she has suited herself he applauds her immensely, and away the two go in quest of material for the nest, the male acting as guard and flying above and in advance of the female. She brings all the material and does all the work of building, he looking on and encouraging her with gesture and song. He acts also as inspector of her work, but I fear is a very partial one. She enters the nest with her bit of dry grass or straw, and, having adjusted it to her notion, withdraws and waits near by while he goes in and looks it over. On coming out he exclaims very plainly, "Excellent! Excellent!" and away the two go again for more material.
The bluebirds, when they build about the farm buildings, sometimes come into contact with the swallows. The past season I knew a pair to take forcible possession of the domicile of a pair of the latter,—the cliff species that now stick their nests under the eaves of the barn. The bluebirds had been broken up in a little bird-house near by, by the rats or perhaps a weasel, and being no doubt in a bad humor, and the season being well advanced, they made forcible entrance into the adobe tenement of their neighbors, and held possession of it for some days, but I believe finally withdrew, rather than live amid such a squeaky, noisy colony. I have heard that these swallows, when ejected from their homes in that way by the phoebe-bird, have been known to fall to and mason up the entrance to the nest while their enemy was inside of it, thus having a revenge as complete and cruel as anything in human annals.
The bluebirds and the house wrens more frequently come into collision. A few years ago I put up a little bird-house in the back end of my garden for the accommodation of the wrens, and every season a pair of bluebirds looked into the tenement and lingered about several days, leading me to hope that they would conclude to occupy it. But they finally went away, and later in the season the wrens appeared, and, after a little coquetting, were regularly installed in their old quarters, and were as happy as only wrens can be.
One of our younger poets, Myron Benton, saw a little bird
"Ruffled with whirlwind of his ecstasies,"
which must have been the wren, as I know of no other bird that so throbs and palpitates with music as this little vagabond. And the pair I speak of seemed exceptionally happy, and the male had a small tornado of song in his crop that kept him "ruffled" every moment in the day. But before their honeymoon was over the bluebirds returned. I knew something was wrong before I was up in the morning. Instead of that voluble and gushing song outside the window, I heard the wrens scolding and crying at a fearful rate, and on going out saw the bluebirds in possession of the box. The poor wrens were in despair; they wrung their hands and tore their hair, after the wren fashion, but chiefly did they rattle out their disgust and wrath at the intruders. I have no doubt that, if it could have been interpreted, it would have proven the rankest and most voluble Billingsgate ever uttered. For the wren is saucy, and he has a tongue in his head that can outwag any other tongue known to me.
The bluebirds said nothing, but the male kept an eye on Mr. Wren; and, when he came to near, gave chase, driving him to cover under the fence, or under a rubbish heap or other object, where the wren would scold and rattle away, while his pursuer sat on the fence or the pea-brush waiting for him to reappear.
Days passed, and the usurpers prospered and the outcasts were wretched; but the latter lingered about, watching and abusing their enemies, and hoping, no doubt, that things would take a turn, as they presently did. The outraged wrens were fully avenged. The mother bluebird had laid her full complement of eggs and was beginning to set, when one day, as her mate was perched above her on the barn, along came a boy with one of those wicked elastic slings and cut him down with a pebble. There he lay like a bit of sky fallen upon the grass. The widowed bird seemed to understand what had happened, and without much ado disappeared next day in quest of another mate. How she contrived to make her wants known, without trumpeting them about, I am unable to say. But I presume that birds have a way of advertising that answers the purpose well. Maybe she trusted to luck to fall in with some stray bachelor or bereaved male who would undertake to console a widow or one day's standing. I will say, in passing, that there are no bachelors from choice among the birds; they are all rejected suitors, while old maids are entirely unknown. There is a Jack to every Jill; and some to boot.