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. One of the most striking cases of mother-love which has ever come under my observation, I saw in the summer of 1912 on the bird rookeries of the Three-Arch Rocks Reservation off the coast of Oregon. We were making our slow way toward the top of the outer rock. Through rookery after rookery of birds we climbed until we reached the edge of the summit. Scrambling over this edge, we found ourselves in the midst of a great colony of nesting murres--hundreds of them--covering this steep rocky part of the top. As our heads appeared above the rim, many of the colony took wing and whirred over us out to sea, but most of them sat close, each bird upon its egg or over its chick, loath to leave, and so expose to us the hidden treasure. The top of the rock was somewhat cone-shaped, and in order to reach the peak and the colonies on the west side we had to make our way through this rookery of the murres. The first step among them, and the whole colony was gone, with a rush of wings and feet that sent several of the top-shaped eggs rolling, and several of the young birds toppling over the cliff to the pounding waves and ledges far below. We stopped, but the colony, almost to a bird, had bolted, leaving scores of eggs and scores of downy young squealing and running together for shelter, like so many beetles under a lifted board.