that in each case the man-eater was a powerful animal in the prime of
life; whereas it frequently happens that the jaguars that turn man-
eaters are old animals, and have become too inactive or too feeble to
catch their ordinary prey.

During the two months before starting from Asuncion, in Paraguay, for
our journey into the interior, I was kept so busy that I had scant
time to think of natural history. But in a strange land a man who
cares for wild birds and wild beasts always sees and hears something
that is new to him and interests him. In the dense tropical woods near
Rio Janeiro I heard in late October--springtime, near the southern
tropic--the songs of many birds that I could not identify. But the
most beautiful music was from a shy woodland thrush, sombre-colored,
which lived near the ground in the thick timber, but sang high among
the branches. At a great distance we could hear the ringing, musical,
bell-like note, long-drawn and of piercing sweetness, which occurs at
intervals in the song; at first I thought this was the song, but when
it was possible to approach the singer I found that these far-sounding
notes were scattered through a continuous song of great melody. I
never listened to one that impressed me more. In different places in
Argentina I heard and saw the Argentine mocking-bird, which is not
very unlike our own, and is also a delightful and remarkable singer.
But I never heard the wonderful white-banded mocking-bird, which is
said by Hudson, who knew well the birds of both South America and
Europe, to be the song-king of them all.

Most of the birds I thus noticed while hurriedly passing through the
country were, of course, the conspicuous ones. The spurred lapwings,
big, tame, boldly marked plover, were everywhere; they were very noisy
and active and both inquisitive and daring, and they have a very