A curious sharing of mother qualities by male and female is shown in the Surinam toads of South America, where the male, taking the newly deposited eggs, places them upon the back of the female. Here, glued fast by their own adhesive jelly, they are soon surrounded by cells grown of the skin of the back, each cell capped by a lid. In these cells the eggs hatch, and the young go through their metamorphoses, apparently absorbing some nourishment through the skin of their mother. Finally they break through the lids of their cells and hop away. They might as well be toadstools upon a dead stump, so far as motherly care or concern goes, for, aside from allowing the male to spread the eggs upon her back, she is no more a mother to them than the dead stump is to the toadstools. She is host only to the little parasites.
I do not know of any mother-love among the reptiles. The mother-passion, so far as my observation goes, plays no part whatever in the life of reptiles. Whereas, passing on to the birds, the mother-passion becomes by all odds the most interesting thing in bird-life.
And is not the mother-passion among the mammals even more interesting? It is as if the watcher in the woods went out to see the mother animal only. It is her going and coming that we follow; her faring, foraging, and watch-care that let us deepest into the secrets of wild animal life.
On one of the large estates here in Hingham, a few weeks ago, a fox was found to be destroying poultry. The time of the raids, and their boldness, were proof enough that the fox must be a female with young. Poisoned meat was prepared for her, and at once the raids ceased. A few days later one of the workmen of the estate came upon the den of a fox, at the mouth of which lay dead a whole litter of young ones. They had been poisoned. The mother had not eaten the prepared food herself, but had carried it home to her family. They must have died in the burrow, for it was evident from the signs that she had dragged them into the fresh air to revive them, and deposited them gently on the sand by the hole. Then in her perplexity she had brought various tidbits of mouse and bird and rabbit, which she placed at their noses to tempt them to wake up out of their strange sleep and eat. No one knows how long she watched beside the lifeless forms, nor what her emotions were. She must have left the neighborhood soon after, however, for no one has seen her since about the estate.
The bird mother is the bravest, tenderest, most appealing thing one ever comes upon in the fields. It is the rare exception, but we sometimes find the real mother wholly lacking among the birds, as in the case of our notorious cowbird, who sneaks about, watching her chance, when some smaller bird is gone, to drop her egg into its nest. The egg must be laid, the burden of the race has been put upon the bird, but not the precious burden of the child. She lays eggs; but is not a mother.
The same is true of the European cuckoos, but not quite true, in spite of popular belief, of our American cuckoos. For our birds (both species) build rude, elementary nests as a rule, and brood their eggs. Occasionally they may use a robin’s or a catbird’s nest, in order to save labor. So undeveloped is the mother in the cuckoo that if you touch her eggs she will leave them—abandon her rude nest and eggs as if any excuse were excuse enough for an escape from the cares of motherhood. How should a bird with so little mother-love ever learn to build a firm-walled, safe, and love-lined nest?
The great California condor is a most faithful and anxious mother; the dumb affection of both parent birds, indeed, for their single offspring is pathetically human. On the other hand, the mother in the turkey buzzard is so evenly balanced against the vulture in her that I have known a brooding bird to be so upset by the sudden approach of a man as to rise from off her eggs and devour them instantly, greedily, and make off on her serenely soaring wings into the clouds.
Such mothers, however, are not the rule. The buzzard, the cuckoo, and the cowbird are the striking exceptions. The flicker will keep on laying eggs as fast as one takes them from the nest-hole, until she has no more eggs to lay. The quail will sometimes desert her nest if even a single egg is so much as touched, but only because she knows that she has been discovered and must start a new nest, hidden in some new place, for safety. She is a wise and devoted mother, keeping her brood with her as a “covey” all winter long.