Small, invisible almost, it rises in the air. Soon it is lost to sight in the sky. Then suddenly a song that, though so often heard before, is still a marvel, comes distinctly on the ear, its notes sharply accented and emphasised as if it were _close to us_. There is a sharp, rhythmical, clapping sound, as if small laths or pieces of whalebone were being rattled together. It comes from that tree right in front of us. No mistake about it seems possible. But the eye searches in vain for the producer of the sound.
Again and again one is deceived in this way. Who could imagine that that little bird far away over there, a hardly perceptible speck on the horizon, is producing this strange music? “Knáck! knáck! knáck!” again, and yet again, it comes to us ringing out loud and clear. Our little invisible songster does not tire of pouring out its strange misleading song. It is a kind of love-song of a species of lark, which was discovered by Fischer some fifteen years ago and bears the name of the naturalist, now long deceased; _Mirafra fischeri_, Rchw.,[44] is its scientific name. Its clapping and rattling are undoubtedly part of the charm of a journey in certain districts of the Masai-Nyíka.
Even in my tent, in the midst of the comparatively loud noise of the busy camp of my numerous caravan, I can hear the clapping, rattling voice of this lark. Some hundreds of yards away it flies up into the sky, like our own skylark, and hovers about clattering in the air, so loudly and distinctly that if I did not know its character and habits, I would have been continually looking for it close to my tent. It is very hard to quite free oneself from this illusion. One continually thinks that one hears the cry of the bird in one’s immediate neighbourhood, the sound being produced much in the same way as that of the snipe.
And yet another strange voice of a lark resounds in my ears: a melancholy, plaintive, soft sound, till now unknown to me and to most others. All night long its calls and cries resound about my camp. I should never have thought that it was a lark (_Mirafra intercedens_ Rchw.) that thus made itself heard in the night, as our woodlarks do in moonlight nights at home. It was at the cost of much careful research that the discovery was made of what bird produced this song.